@article{ref1,
title="Trauma during work with straw and ensilage cutters and its prevention",
journal="Gigiena Truda i Professional'nye Zabolevaniia",
year="1963",
author="Kovalishin, I. V.",
volume="18",
number="",
pages="20-23",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0016-9919",
doi="",
url="http://dx.doi.org/"
}