@article{korczak_martynhak_pedrazzoli_brito_louzada_2008,  title={Influence of chronotype and social zeitgebers on sleep/wake patterns},  volume={41},  ISSN={0100-879X},  url={https://doi.org/10.1590/S0100-879X2008005000047},  DOI={10.1590/S0100-879X2008005000047},  number={10},  journal={Brazilian Journal of Medical and Biological Research},  publisher={Associação Brasileira de Divulgação Científica},  author={Korczak, A.L. and Martynhak, B.J. and Pedrazzoli, M. and Brito, A.F. and Louzada, F.M.},  year={2008},  month={Oct},  pages={914–919} }