Schäfer, RudolfRudolfSchäfer2022-07-282017-10-162022-07-2819010342-1198http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-132289https://jlupub.ub.uni-giessen.de/handle/jlupub/3690http://dx.doi.org/10.22029/jlupub-3281deIn Copyrightddc:943