@article{ref1,
title="Recognition of pills as a test for drug abuse",
journal="Activitas nervosa superior",
year="1972",
author="Drtil, J. and Vojtík, V.",
volume="14",
number="2",
pages="118-118",
abstract="<p>[Abstract unavailable]</p> <p>Language: en</p>",
language="en",
issn="0001-7604",
doi="",
url="http://dx.doi.org/"
}