@article{ref1,
title="The effect of marihuana on tracking task performance",
journal="Psychopharmacology",
year="1973",
author="Roth, Walton T. and Tinklenberg, J. R. and Whitaker, C. A. and Darley, C. F. and Kopell, B. S. and Hollister, L. E.",
volume="33",
number="3",
pages="259-265",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0033-3158",
doi="",
url="http://dx.doi.org/"
}