@article{ref1,
title="Acute pulmonary lithiasis after being covered with cement",
journal="Pracovni Lekarstvi",
year="1963",
author="Pazderova, J.",
volume="15",
number="",
pages="211-212",
abstract="<p>[Abstract unavailable]</p> <p>Language: cs</p>",
language="cs",
issn="0032-6291",
doi="",
url="http://dx.doi.org/"
}