@misc{FischedickLechtenboehmerHankeetal.2008, author = {Fischedick, Manfred and Lechtenb{\"o}hmer, Stefan and Hanke, Thomas and Ramesohl, Stephan}, title = {Angewandte Systemanalyse}, publisher = {Fern-Univ. Hagen}, address = {Hagen}, pages = {281}, year = {2008}, language = {de} }