@inbook {IOPORT.05481705,
    author       = {Burghardt, Markus and Gehrke, Nick and Schumann, Matthias},
    title        = {Eine Architektur zur Abrechnung von Web Services.},
    year         = {2003},
    booktitle    = {XMIDX 2003, XML Technologies f\"ur Middleware - Middleware f\"ur XML-Anwendungen, Proceedings zum Workshop, 17.18. Februar 2003, Berlin.},
    isbn         = {3-88579-353-9},
    pages        = {45-56},
    publisher    = {Bonner K\"ollen Verlag},
    msc2010      = {C.2.4 (D.2.11)},
    identifier   = {05481705},
}