@article{ref1,
title="Social adaptation to first grade and teenage drug, alcohol and cigarette use",
journal="Journal of school health",
year="1982",
author="Kellam, S. G. and Brown, C. H. and Fleming, J. P.",
volume="52",
number="5",
pages="301-306",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-4391",
doi="",
url="http://dx.doi.org/"
}