@inproceedings{BrandtBrandtSpahletal.1997, author = {Andreas Brandt and Manfred Brandt and G. Spahl and D. Weber}, title = {Modelling and optimization of call distribution systems}, booktitle = {Proc. 15th Int. Teletraffic Cong. (ITC 15)}, pages = {133 -- 144}, year = {1997}, }