Ullrich, EgonEgonUllrich2023-06-302006-07-132023-06-301957http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-30557https://jlupub.ub.uni-giessen.de/handle/jlupub/18042http://dx.doi.org/10.22029/jlupub-17410deIn Copyrightddc:500