@article{ref1,
title="Characterising shiftwork patterns by the off-time-distribution",
journal="Journal of human ergology",
year="1982",
author="Adler, A. and Roll, Y.",
volume="11",
number="Suppl",
pages="409-415",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0300-8134",
doi="",
url="http://dx.doi.org/"
}