% actiRhythm package references.
% Single source of truth for citations, shared by the man pages (via Rdpack
% \insertRef{key}{actiRhythm}) and the vignettes/articles (via pandoc [@key]).
% Keys are lastnameYEAR; author spellings match the package's man-page text.

% ---------------------------------------------------------------------------
% Nonparametric rest-activity metrics (IS, IV, RA, L5/M10, fragmentation)
% ---------------------------------------------------------------------------

@Article{witting1990,
  author  = {Witting, W. and Kwa, I. H. and Eikelenboom, P. and Mirmiran, M. and Swaab, D. F.},
  title   = {Alterations in the circadian rest-activity rhythm in aging and {Alzheimer's} disease},
  journal = {Biological Psychiatry},
  year    = {1990},
  volume  = {27},
  number  = {6},
  pages   = {563--572},
  doi     = {10.1016/0006-3223(90)90523-5},
}

@Article{vansomeren1999,
  author  = {Van Someren, E. J. W. and Swaab, D. F. and Colenda, C. C. and Cohen, W. and McCall, W. V. and Rosenquist, P. B.},
  title   = {Bright light therapy: improved sensitivity to its effects on rest-activity rhythms in {Alzheimer} patients by application of nonparametric methods},
  journal = {Chronobiology International},
  year    = {1999},
  volume  = {16},
  number  = {4},
  pages   = {505--518},
  doi     = {10.3109/07420529908998724},
}

@Article{goncalves2014,
  author  = {Goncalves, B. S. B. and Cavalcanti, P. R. A. and Tavares, G. R. and Campos, T. F. and Araujo, J. F.},
  title   = {Nonparametric methods in actigraphy: an update},
  journal = {Sleep Science},
  year    = {2014},
  volume  = {7},
  number  = {3},
  pages   = {158--164},
  doi     = {10.1016/j.slsci.2014.09.013},
}

@Article{mormont2000,
  author  = {Mormont, M. C. and Waterhouse, J. and Bleuzen, P. and Giacchetti, S. and Jami, A. and Bogdan, A. and Lellouch, J. and Misset, J. L. and Touitou, Y. and Levi, F.},
  title   = {Marked 24-h rest/activity rhythms are associated with better quality of life, better response, and longer survival in patients with metastatic colorectal cancer and good performance status},
  journal = {Clinical Cancer Research},
  year    = {2000},
  volume  = {6},
  number  = {8},
  pages   = {3038--3045},
}

@Article{lim2011,
  author  = {Lim, A. S. P. and Yu, L. and Costa, M. D. and Buchman, A. S. and Bennett, D. A. and Leurgans, S. E. and Saper, C. B.},
  title   = {Quantification of the fragmentation of rest-activity patterns in elderly individuals using a state transition analysis},
  journal = {Sleep},
  year    = {2011},
  volume  = {34},
  number  = {11},
  pages   = {1569--1581},
  doi     = {10.5665/sleep.1400},
}

@Article{danilevicz2024,
  author  = {Danilevicz, I. M. and van Hees, V. T. and van der Heide, F. and Jacob, L. and Landre, B. and Benadjaoud, M. A. and Sabia, S.},
  title   = {Measures of fragmentation of rest activity patterns: mathematical properties and interpretability based on accelerometer real life data},
  journal = {BMC Medical Research Methodology},
  year    = {2024},
  volume  = {24},
  pages   = {132},
  doi     = {10.1186/s12874-024-02255-w},
}

% ---------------------------------------------------------------------------
% Cosinor rhythmometry
% ---------------------------------------------------------------------------

@Article{nelson1979,
  author  = {Nelson, W. and Tong, Y. L. and Lee, J. K. and Halberg, F.},
  title   = {Methods for cosinor-rhythmometry},
  journal = {Chronobiologia},
  year    = {1979},
  volume  = {6},
  number  = {4},
  pages   = {305--323},
}

@Article{bingham1982,
  author  = {Bingham, C. and Arbogast, B. and Cornelissen Guillaume, G. and Lee, J. K. and Halberg, F.},
  title   = {Inferential statistical methods for estimating and comparing cosinor parameters},
  journal = {Chronobiologia},
  year    = {1982},
  volume  = {9},
  number  = {4},
  pages   = {397--439},
}

@Article{marler2006,
  author  = {Marler, M. R. and Gehrman, P. and Martin, J. L. and Ancoli-Israel, S.},
  title   = {The sigmoidally transformed cosine curve: a mathematical model for circadian rhythms with symmetric non-sinusoidal shapes},
  journal = {Statistics in Medicine},
  year    = {2006},
  volume  = {25},
  number  = {22},
  pages   = {3893--3904},
  doi     = {10.1002/sim.2466},
}

@Article{refinetti2007,
  author  = {Refinetti, R. and Cornelissen, G. and Halberg, F.},
  title   = {Procedures for numerical analysis of circadian rhythms},
  journal = {Biological Rhythm Research},
  year    = {2007},
  volume  = {38},
  number  = {4},
  pages   = {275--325},
  doi     = {10.1080/09291010600903692},
}

@Article{cornelissen2014,
  author  = {Cornelissen, G.},
  title   = {Cosinor-based rhythmometry},
  journal = {Theoretical Biology and Medical Modelling},
  year    = {2014},
  volume  = {11},
  pages   = {16},
  doi     = {10.1186/1742-4682-11-16},
}

@Manual{wang2021actcr,
  author  = {Di, Junrui and Zipunnikov, Vadim},
  title   = {{ActCR}: Extract Circadian Rhythms Metrics from Actigraphy Data},
  year    = {2021},
  note    = {R package version 0.2.0},
  url     = {https://CRAN.R-project.org/package=ActCR},
}

% ---------------------------------------------------------------------------
% Period estimation and spectral analysis
% ---------------------------------------------------------------------------

@Article{sokolove1978,
  author  = {Sokolove, P. G. and Bushell, W. N.},
  title   = {The chi square periodogram: its utility for analysis of circadian rhythms},
  journal = {Journal of Theoretical Biology},
  year    = {1978},
  volume  = {72},
  number  = {1},
  pages   = {131--160},
  doi     = {10.1016/0022-5193(78)90022-X},
}

@Article{lomb1976,
  author  = {Lomb, N. R.},
  title   = {Least-squares frequency analysis of unequally spaced data},
  journal = {Astrophysics and Space Science},
  year    = {1976},
  volume  = {39},
  number  = {2},
  pages   = {447--462},
  doi     = {10.1007/BF00648343},
}

@Article{scargle1982,
  author  = {Scargle, J. D.},
  title   = {Studies in astronomical time series analysis. {II}. Statistical aspects of spectral analysis of unevenly spaced data},
  journal = {The Astrophysical Journal},
  year    = {1982},
  volume  = {263},
  pages   = {835--853},
  doi     = {10.1086/160554},
}

@Article{ruf1999,
  author  = {Ruf, T.},
  title   = {The {Lomb-Scargle} periodogram in biological rhythm research: analysis of incomplete and unequally spaced time-series},
  journal = {Biological Rhythm Research},
  year    = {1999},
  volume  = {30},
  number  = {2},
  pages   = {178--201},
  doi     = {10.1076/brhm.30.2.178.1422},
}

@Article{sidak1967,
  author  = {Sidak, Z.},
  title   = {Rectangular confidence regions for the means of multivariate normal distributions},
  journal = {Journal of the American Statistical Association},
  year    = {1967},
  volume  = {62},
  number  = {318},
  pages   = {626--633},
  doi     = {10.1080/01621459.1967.10482935},
}

@Article{liu2020,
  author  = {Liu, Yaowu and Xie, Jun},
  title   = {Cauchy combination test: a powerful test with analytic p-value calculation under arbitrary dependency structures},
  journal = {Journal of the American Statistical Association},
  year    = {2020},
  volume  = {115},
  number  = {529},
  pages   = {393--402},
  doi     = {10.1080/01621459.2018.1554485},
}

@Article{kunsch1989,
  author  = {Kunsch, H. R.},
  title   = {The jackknife and the bootstrap for general stationary observations},
  journal = {The Annals of Statistics},
  year    = {1989},
  volume  = {17},
  number  = {3},
  pages   = {1217--1241},
  doi     = {10.1214/aos/1176347265},
}

@InCollection{politis1992,
  author    = {Politis, D. N. and Romano, J. P.},
  title     = {A circular block-resampling procedure for stationary data},
  booktitle = {Exploring the Limits of Bootstrap},
  editor    = {LePage, R. and Billard, L.},
  publisher = {Wiley},
  address   = {New York},
  year      = {1992},
  pages     = {263--270},
}

% ---------------------------------------------------------------------------
% Fractal and nonlinear dynamics (DFA, MFDFA)
% ---------------------------------------------------------------------------

@Article{peng1994,
  author  = {Peng, C. K. and Buldyrev, S. V. and Havlin, S. and Simons, M. and Stanley, H. E. and Goldberger, A. L.},
  title   = {Mosaic organization of {DNA} nucleotides},
  journal = {Physical Review E},
  year    = {1994},
  volume  = {49},
  number  = {2},
  pages   = {1685--1689},
  doi     = {10.1103/PhysRevE.49.1685},
}

@Article{hu2001,
  author  = {Hu, K. and Ivanov, P. C. and Chen, Z. and Carpena, P. and Stanley, H. E.},
  title   = {Effect of trends on detrended fluctuation analysis},
  journal = {Physical Review E},
  year    = {2001},
  volume  = {64},
  number  = {1},
  pages   = {011114},
  doi     = {10.1103/PhysRevE.64.011114},
}

@Article{hu2009,
  author  = {Hu, K. and Van Someren, E. J. W. and Shea, S. A. and Scheer, F. A. J. L.},
  title   = {Reduction of scale invariance of activity fluctuations with aging and {Alzheimer's} disease: {Involvement} of the circadian pacemaker},
  journal = {Proceedings of the National Academy of Sciences},
  year    = {2009},
  volume  = {106},
  number  = {8},
  pages   = {2490--2494},
  doi     = {10.1073/pnas.0806087106},
}

@Article{kantelhardt2002,
  author  = {Kantelhardt, J. W. and Zschiegner, S. A. and Koscielny-Bunde, E. and Havlin, S. and Bunde, A. and Stanley, H. E.},
  title   = {Multifractal detrended fluctuation analysis of nonstationary time series},
  journal = {Physica A: Statistical Mechanics and its Applications},
  year    = {2002},
  volume  = {316},
  number  = {1-4},
  pages   = {87--114},
  doi     = {10.1016/S0378-4371(02)01383-3},
}

% ---------------------------------------------------------------------------
% Decomposition: EMD/HHT, SSA, wavelet, functional models
% ---------------------------------------------------------------------------

@Article{huang1998,
  author  = {Huang, N. E. and Shen, Z. and Long, S. R. and Wu, M. C. and Shih, H. H. and Zheng, Q. and Yen, N. C. and Tung, C. C. and Liu, H. H.},
  title   = {The empirical mode decomposition and the {Hilbert} spectrum for nonlinear and non-stationary time series analysis},
  journal = {Proceedings of the Royal Society A},
  year    = {1998},
  volume  = {454},
  number  = {1971},
  pages   = {903--995},
  doi     = {10.1098/rspa.1998.0193},
}

@Article{wuhuang2009,
  author  = {Wu, Z. and Huang, N. E.},
  title   = {Ensemble empirical mode decomposition: a noise-assisted data analysis method},
  journal = {Advances in Adaptive Data Analysis},
  year    = {2009},
  volume  = {1},
  number  = {1},
  pages   = {1--41},
  doi     = {10.1142/S1793536909000047},
}

@Book{golyandina2013,
  author    = {Golyandina, N. and Zhigljavsky, A.},
  title     = {Singular Spectrum Analysis for Time Series},
  series    = {SpringerBriefs in Statistics},
  publisher = {Springer},
  year      = {2013},
  doi       = {10.1007/978-3-642-34913-3},
}

@Article{vautard1992,
  author  = {Vautard, R. and Yiou, P. and Ghil, M.},
  title   = {Singular-spectrum analysis: a toolkit for short, noisy chaotic signals},
  journal = {Physica D: Nonlinear Phenomena},
  year    = {1992},
  volume  = {58},
  number  = {1-4},
  pages   = {95--126},
  doi     = {10.1016/0167-2789(92)90103-T},
}

@Article{torrence1998,
  author  = {Torrence, C. and Compo, G. P.},
  title   = {A practical guide to wavelet analysis},
  journal = {Bulletin of the American Meteorological Society},
  year    = {1998},
  volume  = {79},
  number  = {1},
  pages   = {61--78},
  doi     = {10.1175/1520-0477(1998)079<0061:APGTWA>2.0.CO;2},
}

@Article{leise2013,
  author  = {Leise, T. L.},
  title   = {Wavelet analysis of circadian and ultradian behavioral rhythms},
  journal = {Journal of Circadian Rhythms},
  year    = {2013},
  volume  = {11},
  pages   = {5},
  doi     = {10.1186/1740-3391-11-5},
}

@Article{liu2007,
  author  = {Liu, Yonggang and Liang, X. San and Weisberg, Robert H.},
  title   = {Rectification of the bias in the wavelet power spectrum},
  journal = {Journal of Atmospheric and Oceanic Technology},
  year    = {2007},
  volume  = {24},
  number  = {12},
  pages   = {2093--2102},
  doi     = {10.1175/2007JTECHO511.1},
}

@Book{percival2000,
  author    = {Percival, D. B. and Walden, A. T.},
  title     = {Wavelet Methods for Time Series Analysis},
  publisher = {Cambridge University Press},
  year      = {2000},
  doi       = {10.1017/CBO9780511841040},
}

@Article{wang2011flm,
  author  = {Wang, J. and Xian, H. and Licis, A. and Deych, E. and Ding, J. and McLeland, J. and Toedebusch, C. and Li, T. and Duntley, S. and Shannon, W.},
  title   = {Measuring the impact of apnea and obesity on circadian activity patterns using functional linear modeling of actigraphy data},
  journal = {Journal of Circadian Rhythms},
  year    = {2011},
  volume  = {9},
  pages   = {11},
  doi     = {10.1186/1740-3391-9-11},
}

@Book{ramsay2005,
  author    = {Ramsay, J. O. and Silverman, B. W.},
  title     = {Functional Data Analysis},
  edition   = {2nd},
  publisher = {Springer},
  year      = {2005},
  doi       = {10.1007/b98888},
}

@Article{krafty2019,
  author  = {Krafty, R. T. and Fu, H. and Graves, J. L. and Bruce, S. A. and Hall, M. H. and Smagula, S. F.},
  title   = {Measuring variability in rest-activity rhythms from actigraphy with application to characterizing symptoms of depression},
  journal = {Statistics in Biosciences},
  year    = {2019},
  volume  = {11},
  pages   = {314--333},
  doi     = {10.1007/s12561-018-09230-2},
}

% ---------------------------------------------------------------------------
% Phase, onset, regularity, social jet lag, changepoints
% ---------------------------------------------------------------------------

@Article{phillips2017,
  author  = {Phillips, A. J. K. and Clerx, W. M. and O'Brien, C. S. and Sano, A. and Barger, L. K. and Picard, R. W. and Lockley, S. W. and Klerman, E. B. and Czeisler, C. A.},
  title   = {Irregular sleep/wake patterns are associated with poorer academic performance and delayed circadian and sleep/wake timing},
  journal = {Scientific Reports},
  year    = {2017},
  volume  = {7},
  number  = {1},
  pages   = {3216},
  doi     = {10.1038/s41598-017-03171-4},
}

@Article{wittmann2006,
  author  = {Wittmann, M. and Dinich, J. and Merrow, M. and Roenneberg, T.},
  title   = {Social jetlag: misalignment of biological and social time},
  journal = {Chronobiology International},
  year    = {2006},
  volume  = {23},
  number  = {1-2},
  pages   = {497--509},
  doi     = {10.1080/07420520500545979},
}

@Article{roenneberg2012,
  author  = {Roenneberg, T. and Allebrandt, K. V. and Merrow, M. and Vetter, C.},
  title   = {Social jetlag and obesity},
  journal = {Current Biology},
  year    = {2012},
  volume  = {22},
  number  = {10},
  pages   = {939--943},
  doi     = {10.1016/j.cub.2012.03.038},
}

@Article{roenneberg2003,
  author  = {Roenneberg, T. and Wirz-Justice, A. and Merrow, M.},
  title   = {Life between clocks: daily temporal patterns of human chronotypes},
  journal = {Journal of Biological Rhythms},
  year    = {2003},
  volume  = {18},
  number  = {1},
  pages   = {80--90},
  doi     = {10.1177/0748730402239679},
}

@Article{fischer2016,
  author  = {Fischer, D. and Vetter, C. and Roenneberg, T.},
  title   = {A novel method to visualise and quantify circadian misalignment},
  journal = {Scientific Reports},
  year    = {2016},
  volume  = {6},
  pages   = {38601},
  doi     = {10.1038/srep38601},
}

@Book{fisher1993,
  author    = {Fisher, N. I.},
  title     = {Statistical Analysis of Circular Data},
  publisher = {Cambridge University Press},
  year      = {1993},
  doi       = {10.1017/CBO9780511564345},
}

@Article{landler2019,
  author  = {Landler, L. and Ruxton, G. D. and Malkemper, E. P.},
  title   = {The {Hermans-Rasson} test as a powerful alternative to the {Rayleigh} test for circular statistics in biology},
  journal = {BMC Ecology},
  year    = {2019},
  volume  = {19},
  pages   = {30},
  doi     = {10.1186/s12898-019-0246-8},
}

@Article{chensun2024,
  author  = {Chen, S. and Sun, X.},
  title   = {Validating {CircaCP}: a generic sleep-wake cycle detection algorithm for unlabelled actigraphy data},
  journal = {Royal Society Open Science},
  year    = {2024},
  volume  = {11},
  number  = {5},
  pages   = {231468},
  doi     = {10.1098/rsos.231468},
}

% ---------------------------------------------------------------------------
% Sleep / rest detection and HMM
% ---------------------------------------------------------------------------

@Article{cole1992,
  author  = {Cole, R. J. and Kripke, D. F. and Gruen, W. and Mullaney, D. J. and Gillin, J. C.},
  title   = {Automatic sleep/wake identification from wrist activity},
  journal = {Sleep},
  year    = {1992},
  volume  = {15},
  number  = {5},
  pages   = {461--469},
  doi     = {10.1093/sleep/15.5.461},
}

@Article{webster1982,
  author  = {Webster, J. B. and Kripke, D. F. and Messin, S. and Mullaney, D. J. and Wyborney, G.},
  title   = {An activity based sleep monitor system for ambulatory use},
  journal = {Sleep},
  year    = {1982},
  volume  = {5},
  number  = {4},
  pages   = {389--399},
  doi     = {10.1093/sleep/5.4.389},
}

@Article{sadeh1994,
  author  = {Sadeh, A. and Sharkey, K. M. and Carskadon, M. A.},
  title   = {Activity-based sleep-wake identification: an empirical test of methodological issues},
  journal = {Sleep},
  year    = {1994},
  volume  = {17},
  number  = {3},
  pages   = {201--207},
  doi     = {10.1093/sleep/17.3.201},
}

@Article{crespo2012,
  author  = {Crespo, C. and Aboy, M. and Fernandez, J. R. and Mojon, A.},
  title   = {Automatic identification of activity-rest periods based on actigraphy},
  journal = {Medical \& Biological Engineering \& Computing},
  year    = {2012},
  volume  = {50},
  number  = {4},
  pages   = {329--340},
  doi     = {10.1007/s11517-012-0875-y},
}

@Article{roenneberg2015,
  author  = {Roenneberg, T. and Keller, L. K. and Fischer, D. and Matera, J. L. and Vetter, C. and Winnebeck, E. C.},
  title   = {Human activity and rest in situ},
  journal = {Methods in Enzymology},
  year    = {2015},
  volume  = {552},
  pages   = {257--283},
  doi     = {10.1016/bs.mie.2014.11.028},
}

@Article{loock2021,
  author  = {Loock, A.-S. and Khan Sullivan, A. and Reis, C. and Paiva, T. and Ghotbi, N. and Pilz, L. K. and Biller, A. M. and Molenda, C. and Vuori-Brodowski, M. T. and Roenneberg, T. and Winnebeck, E. C.},
  title   = {Validation of the {Munich} Actimetry Sleep Detection Algorithm for estimating sleep-wake patterns from activity recordings},
  journal = {Journal of Sleep Research},
  year    = {2021},
  volume  = {30},
  number  = {6},
  pages   = {e13371},
  doi     = {10.1111/jsr.13371},
}

@Article{winnebeck2018,
  author  = {Winnebeck, E. C. and Fischer, D. and Leise, T. and Roenneberg, T.},
  title   = {Dynamics and ultradian structure of human sleep in real life},
  journal = {Current Biology},
  year    = {2018},
  volume  = {28},
  number  = {1},
  pages   = {49--59},
  doi     = {10.1016/j.cub.2017.11.063},
}

@Article{huang2018hmm,
  author  = {Huang, Q. and Cohen, D. and Komarzynski, S. and Li, X.-M. and Innominato, P. and Levi, F. and Finkenstadt, B.},
  title   = {Hidden {Markov} models for monitoring circadian rhythmicity in telemetric activity data},
  journal = {Journal of the Royal Society Interface},
  year    = {2018},
  volume  = {15},
  number  = {139},
  pages   = {20170885},
  doi     = {10.1098/rsif.2017.0885},
}

% ---------------------------------------------------------------------------
% Raw accelerometer: counts conversion, calibration, ENMO/MAD, non-wear
% ---------------------------------------------------------------------------

@Article{neishabouri2022,
  author  = {Neishabouri, A. and Nguyen, J. and Samuelsson, J. and Guthrie, T. and Biggs, M. and Wyatt, J. and Cross, D. and Karas, M. and Migueles, J. H. and Khan, S. and Guo, C. C.},
  title   = {Quantification of acceleration as activity counts in {ActiGraph} wearable},
  journal = {Scientific Reports},
  year    = {2022},
  volume  = {12},
  pages   = {11958},
  doi     = {10.1038/s41598-022-16003-x},
}

@Article{brond2017,
  author  = {Brond, J. C. and Andersen, L. B. and Arvidsson, D.},
  title   = {Generating {ActiGraph} counts from raw acceleration recorded by an alternative monitor},
  journal = {Medicine \& Science in Sports \& Exercise},
  year    = {2017},
  volume  = {49},
  number  = {11},
  pages   = {2351--2360},
  doi     = {10.1249/MSS.0000000000001344},
}

@Article{vanhees2013,
  author  = {van Hees, V. T. and Gorzelniak, L. and Dean Leon, E. C. and Eder, M. and Pias, M. and Taherian, S. and Ekelund, U. and Renstrom, F. and Franks, P. W. and Horsch, A. and Brage, S.},
  title   = {Separating movement and gravity components in an acceleration signal and implications for the assessment of human daily physical activity},
  journal = {PLoS ONE},
  year    = {2013},
  volume  = {8},
  number  = {4},
  pages   = {e61691},
  doi     = {10.1371/journal.pone.0061691},
}

@Article{vanhees2014,
  author  = {van Hees, V. T. and Fang, Z. and Langford, J. and Assah, F. and Mohammad, A. and da Silva, I. C. M. and Trenell, M. I. and White, T. and Wareham, N. J. and Brage, S.},
  title   = {Autocalibration of accelerometer data for free-living physical activity assessment using local gravity and temperature: an evaluation on four continents},
  journal = {Journal of Applied Physiology},
  year    = {2014},
  volume  = {117},
  number  = {7},
  pages   = {738--744},
  doi     = {10.1152/japplphysiol.00421.2014},
}

@Article{vahaypya2015,
  author  = {Vaha-Ypya, H. and Vasankari, T. and Husu, P. and Suni, J. and Sievanen, H.},
  title   = {A universal, accurate intensity-based classification of different physical activities using raw data of accelerometer},
  journal = {Clinical Physiology and Functional Imaging},
  year    = {2015},
  volume  = {35},
  number  = {1},
  pages   = {64--70},
  doi     = {10.1111/cpf.12127},
}

@Article{vanhees2015,
  author  = {van Hees, V. T. and Sabia, S. and Anderson, K. N. and Denton, S. J. and Oliver, J. and Catt, M. and Abell, J. G. and Kivimaki, M. and Trenell, M. I. and Singh-Manoux, A.},
  title   = {A novel, open access method to assess sleep duration using a wrist-worn accelerometer},
  journal = {PLoS ONE},
  year    = {2015},
  volume  = {10},
  number  = {11},
  pages   = {e0142533},
  doi     = {10.1371/journal.pone.0142533},
}

@Article{vanhees2018,
  author  = {van Hees, V. T. and Sabia, S. and Jones, S. E. and Wood, A. R. and Anderson, K. N. and Kivimaki, M. and Frayling, T. M. and Pack, A. I. and Bucan, M. and Trenell, M. I. and Mazzotti, D. R. and Gehrman, P. R. and Singh-Manoux, B. A. and Weedon, M. N.},
  title   = {Estimating sleep parameters using an accelerometer without sleep diary},
  journal = {Scientific Reports},
  year    = {2018},
  volume  = {8},
  pages   = {12975},
  doi     = {10.1038/s41598-018-31266-z},
}

@Article{choi2011,
  author  = {Choi, L. and Liu, Z. and Matthews, C. E. and Buchowski, M. S.},
  title   = {Validation of accelerometer wear and nonwear time classification algorithm},
  journal = {Medicine \& Science in Sports \& Exercise},
  year    = {2011},
  volume  = {43},
  number  = {2},
  pages   = {357--364},
  doi     = {10.1249/MSS.0b013e3181ed61a3},
}

@Article{troiano2008,
  author  = {Troiano, R. P. and Berrigan, D. and Dodd, K. W. and Masse, L. C. and Tilert, T. and McDowell, M.},
  title   = {Physical activity in the {United States} measured by accelerometer},
  journal = {Medicine \& Science in Sports \& Exercise},
  year    = {2008},
  volume  = {40},
  number  = {1},
  pages   = {181--188},
  doi     = {10.1249/mss.0b013e31815a51b3},
}

% ---------------------------------------------------------------------------
% Related software
% ---------------------------------------------------------------------------

@Article{hammad2021,
  author  = {Hammad, G. and Reyt, M. and Beliy, N. and Baillet, M. and Deantoni, M. and Lesoinne, A. and Muto, V. and Schmidt, C.},
  title   = {{pyActigraphy}: open-source python package for actigraphy data visualization and analysis},
  journal = {PLOS Computational Biology},
  year    = {2021},
  volume  = {17},
  number  = {10},
  pages   = {e1009514},
  doi     = {10.1371/journal.pcbi.1009514},
}

@Article{migueles2019,
  author  = {Migueles, J. H. and Rowlands, A. V. and Huber, F. and Sabia, S. and van Hees, V. T.},
  title   = {{GGIR}: a research community-driven open source {R} package for generating physical activity and sleep outcomes from multi-day raw accelerometer data},
  journal = {Journal for the Measurement of Physical Behaviour},
  year    = {2019},
  volume  = {2},
  number  = {3},
  pages   = {188--196},
  doi     = {10.1123/jmpb.2018-0063},
}

% ---------------------------------------------------------------------------
% Additional methods cited in the vignettes
% ---------------------------------------------------------------------------

@Article{baluev2008,
  author  = {Baluev, R. V.},
  title   = {Assessing the statistical significance of periodogram peaks},
  journal = {Monthly Notices of the Royal Astronomical Society},
  year    = {2008},
  volume  = {385},
  number  = {3},
  pages   = {1279--1285},
  doi     = {10.1111/j.1365-2966.2008.12689.x},
}

@Article{costa2002,
  author  = {Costa, M. and Goldberger, A. L. and Peng, C.-K.},
  title   = {Multiscale entropy analysis of complex physiologic time series},
  journal = {Physical Review Letters},
  year    = {2002},
  volume  = {89},
  number  = {6},
  pages   = {068102},
  doi     = {10.1103/PhysRevLett.89.068102},
}

@Article{costa2005,
  author  = {Costa, M. and Goldberger, A. L. and Peng, C.-K.},
  title   = {Multiscale entropy analysis of biological signals},
  journal = {Physical Review E},
  year    = {2005},
  volume  = {71},
  number  = {2},
  pages   = {021906},
  doi     = {10.1103/PhysRevE.71.021906},
}

@Article{richman2000,
  author  = {Richman, J. S. and Moorman, J. R.},
  title   = {Physiological time-series analysis using approximate entropy and sample entropy},
  journal = {American Journal of Physiology - Heart and Circulatory Physiology},
  year    = {2000},
  volume  = {278},
  number  = {6},
  pages   = {H2039--H2049},
  doi     = {10.1152/ajpheart.2000.278.6.H2039},
}
