@Book{017418267,
author="Behrend, Eberhard
and Ludwig, J{\"o}rg",
title="Untersuchungen an Stopfbuchsen von Ventilen und Schiebern f{\"u}r Gase",
series="Forschungsbericht / BAM, Bundesanstalt f{\"u}r Materialpr{\"u}fung, Berlin 63",
year="1979",
publisher="BAM",
address="Berlin",
note="E. Behrend; J. Ludwig",
language="German"
}