@article{ref1,
title="Cocaine: old drug, new problems",
journal="Journal of school health",
year="1977",
author="Kegley, C. F. and Thomas, J. A.",
volume="47",
number="10",
pages="600-602",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-4391",
doi="",
url="http://dx.doi.org/"
}