Roloff, GustavGustavRoloff2022-07-282017-04-242022-07-2819330342-1198http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-126831https://jlupub.ub.uni-giessen.de/handle/jlupub/3819http://dx.doi.org/10.22029/jlupub-3410deIn Copyrightddc:943