@article{ref1,
title="Data on injuries in the coal mining industries in capitalistic countries in recent years",
journal="Ortopediia travmatologiia i protezirovanie",
year="1963",
author="Trifonov, A. P.",
volume="24",
number="",
pages="81-84",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0030-5987",
doi="",
url="http://dx.doi.org/"
}