@article{ref1,
title="Chronobiology and competitive sports: recent studies and future perspectives",
journal="Chronobiology international",
year="2014",
author="Erren, Thomas C. and Groß, J. Valérie and Kantermann, Thomas and Kuffer, Liz",
volume="31",
number="5",
pages="746-747",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0742-0528",
doi="10.3109/07420528.2014.899603",
url="http://dx.doi.org/10.3109/07420528.2014.899603"
}