@article{ref1,
title="Working conditions, morbidity and traumatism of workers of the construction industry",
journal="Gigiena Truda i Professional'nye Zabolevaniia",
year="1965",
author="Petrov, V. I.",
volume="9",
number="3",
pages="43-46",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9919",
doi="",
url="http://dx.doi.org/"
}