@techreport{BleyKosterKroelleretal.2003, author = {Andreas Bley and Arie M.C.A. Koster and Alexander Kr{\"o}ller and Roland Wess{\"a}ly and Adrian Zymolka}, title = {Kosten- und Qualit{\"a}tsoptimierung in Kommunikationsnetzen}, institution = {ZIB}, address = {Takustr. 7, 14195 Berlin}, number = {03-31}, language = {deu}, year = {2003} }