Gollner, ErwinErwinGollnerKreuzriegler, FriedrichFriedrichKreuzriegler2017-04-252017-04-251993VNL 1, 1993, 10 - 12http://hdl.handle.net/20.500.11790/686deinfo:eu-repo/semantics/closedAccessinfo:eu-repo/semantics/contributionToPeriodical