@article{ref1,
title="Flaw streaks in glass as an explanation for very small density differences",
journal="Archiv für Kriminologie",
year="1977",
author="Guthknecht, H. J.",
volume="160",
number="3-4",
pages="87-90",
abstract="<p>[Abstract unavailable]</p><p>Language: de</p>",
language="de",
issn="0003-9225",
doi="",
url="http://dx.doi.org/"
}