@article{ref1,
title="A longitudinal study of drugs on a campus",
journal="International journal of the addictions",
year="1973",
author="Garfield, M. D. and Garfield, E. F.",
volume="8",
number="4",
pages="599-611",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0020-773X",
doi="",
url="http://dx.doi.org/"
}