Ricker, LeoLeoRicker2022-07-042013-11-292022-07-041926http://nbn-resolving.de/urn:nbn:de:hebis:26-opus-103423https://jlupub.ub.uni-giessen.de/handle/jlupub/2507http://dx.doi.org/10.22029/jlupub-2204deIn Copyrightddc:070