@article{ref1,
title="Problems of laboratory control in connection with the use of chemicals in agriculture",
journal="Gigiena i Sanitariia",
year="1966",
author="Gracheva, G. V.",
volume="31",
number="1",
pages="71-72",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9900",
doi="",
url="http://dx.doi.org/"
}