@article{ref1,
title="Note on the possibility of demonstrating the GM-factors in semen",
journal="Medicine, science, and the law",
year="1963",
author="Nielsen, J. C. and Henningsen, K.",
volume="3",
number="3",
pages="272-274",
abstract="<p>[Abstract unavailable]</p><p>Language: en</p>",
language="en",
issn="0025-8024",
doi="",
url="http://dx.doi.org/"
}