@article{ref1,
title="Nmr spectroscopic identification of sulfonamides from urine",
journal="American educational research journal",
year="1974",
author="Lackner, H. and Döring, G. and Carre, ",
volume="4",
number="3",
pages="219-231",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0002-8312",
doi="",
url="http://dx.doi.org/"
}