@article{ref1,
title="Fatal accident in a well due to a great carbon dioxide concentration",
journal="Gigiena i Sanitariia",
year="1951",
author="L'vovich, D. B.",
volume="7",
number="",
pages="50-51",
abstract="<p>[Abstract unavailable]</p> <p>Language: un</p>",
language="un",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}