@book{MullerEttrich.1993, address = {Bonn, München, Paris ^^}, author = {Müller-Ettrich, Gunter and Ettrich, Müller Gunter}, edition = {1. Aufl.}, interhash = {74e8e075f3c1c37adcdcd5073ca706c7}, intrahash = {00cc1a19427b9b8a645e0b4f85676081}, isbn = {3893194878}, price = {DM 79.90}, privnote = {Nr.138}, publisher = {Addison-Wesley}, title = {Fachliche Modellierung von Informationssystemen: Methoden, Vorgehen, Werkzeuge}, year = 1993 }