@article{ref1,
title="PMS: an old problem for today's female worker",
journal="Occupational health and safety",
year="1983",
author="Kramer, L. C.",
volume="52",
number="10",
pages="49-50, 54",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0362-4064",
doi="",
url="http://dx.doi.org/"
}