@article{ref1,
title="Accident prevention among crews of merchant ships",
journal="World health forum",
year="1991",
author="Sapovalov, K. A.",
volume="12",
number="2",
pages="203-204",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0251-2432",
doi="",
url="http://dx.doi.org/"
}