@article{ref1,
title="The problem of poisoning in Bulgarian agriculture",
journal="Pracovni Lekarstvi",
year="1962",
author="Kalojanova-simeonova, F.",
volume="14",
number="",
pages="321-323",
abstract="<p>[Abstract unavailable]</p><p>Language: cs</p>",
language="cs",
issn="0032-6291",
doi="",
url="http://dx.doi.org/"
}