@article{ref1,
title="Penetrating injuries of the heart",
journal="Rozhledy v Chirurgii- Mesicnik Ceskoslovenske Chirurgicke Spolecnosti",
year="1981",
author="Murgas, I.",
volume="60",
number="8",
pages="558-563",
abstract="<p>[Abstract unavailable]</p><p>Language: sk</p>",
language="sk",
issn="0035-9351",
doi="",
url="http://dx.doi.org/"
}