@article{ref1,
title="The etiologic problem of homosexuality",
journal="Studium Generale",
year="1966",
author="Freund, K.",
volume="19",
number="5",
pages="290-302",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0039-4149",
doi="",
url="http://dx.doi.org/"
}