@book{TUW-139541, author = {Hitz, Martin and Kappel, Gerti and Kapsammer, Elisabeth and Retschitzegger, Werner}, title = {UML@Work, Objektorientierte Modellierung mit UML 2}, publisher = {dpunkt.verlag}, year = {2005}, address = {Heidelberg}, numpages = {400}, isbn = {3-89864-261-5} }