Schaal, Marcel2013-12-032016-03-312013-12-032016-03-31201339869270Xhttp://nbn-resolving.de/urn:nbn:de:bsz:93-opus-88329http://elib.uni-stuttgart.de/handle/11682/3211http://dx.doi.org/10.18419/opus-3194-deinfo:eu-repo/semantics/openAccess004masterThesis