@article{ref1,
title="Case of closed heart injury",
journal="Grudnaia Khirurgiia (Moscow, Russia)",
year="1972",
author="Fedun, A. A. and Men'shenin, E. I.",
volume="14",
number="5",
pages="93-93",
abstract="<p>[Abstract unavailable]</p><p>Language: ru</p>",
language="ru",
issn="0017-4866",
doi="",
url="http://dx.doi.org/"
}