@article{ref1,
title="Working conditions on board the modern vessels and their effects on health of the crewmen",
journal="Bulletin of the Institute of Maritime and Tropical Medicine in Gdynia",
year="1975",
author="Sergeev, E.",
volume="26",
number="2",
pages="175-186",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0324-8542",
doi="",
url="http://dx.doi.org/"
}