@article{ref1,
title="Cannabinoid content of fifty seized hashish samples",
journal="Journal of forensic sciences",
year="1972",
author="Ek, N. A. and Lönberg, E. and Maehly, A. C. and Stromberg, L.",
volume="17",
number="3",
pages="456-459",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0022-1198",
doi="",
url="http://dx.doi.org/"
}