@article{ref1,
title="Hygienic evaluation of gas water heaters",
journal="Gigiena i Sanitariia",
year="1956",
author="Deviatka, D. G.",
volume="21",
number="11",
pages="67-69",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}