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@inproceedings{SFPW98b, author = {Burkhard Stiller and George Fankhauser and Bernhard Plattner and Nathalie Weiler}, title = {Charging and Accounting for Integrated Internet Services - State of the Art, Problems, and Trends}, address = {Geneva}, booktitle = {The Internet Summit (INET 98)}, month = {Jul}, year = {1998} }