@article{ref1,
title="State of health of persons being in contact with fluorine-containing substances",
journal="Vrachebnoe Delo",
year="1974",
author="Nekhamkis, A. N. and Vievskaia, G. A.",
volume="",
number="6",
pages="134-137",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0049-6804",
doi="",
url="http://dx.doi.org/"
}