Friedt, WolfgangWolfgangFriedt2023-06-122008-10-132023-06-121994http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-64893https://jlupub.ub.uni-giessen.de/handle/jlupub/17001http://dx.doi.org/10.22029/jlupub-16379Modified and extended version of a paper published in the Proceedings of the AOCS World Conference and Exhibiton, Budapest 1992enIn Copyrightddc:630