@article{ref1,
title="Physiological and hygienic bases for introducing breaks in work under intense noise conditions",
journal="Gigiena i Sanitariia",
year="1977",
author="Orlovskaia, E. P. and Lipovoĭ, V. V.",
volume="",
number="6",
pages="29-33",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}