@article{ref1,
title="50 years of medical aviation in the USSR and cooperation of aviation with the health services in our country",
journal="Casopis Lekaru Ceskych",
year="1977",
author="Vácha, V.",
volume="116",
number="44",
pages="1368-1370",
abstract="<p>[Abstract unavailable]</p><p>Language: cs</p>",
language="cs",
issn="0008-7335",
doi="",
url="http://dx.doi.org/"
}