APA
Stiller B., Carle G., Karsten M. & Reichl P. (2003). Group Communications and Charges : Technology and Business Models : 5th COST 264 International Workshop on Networked Group Communications, NGC 2003 and 3rd International Workshop on Internet Charging and QoS Technologies, ICQT 2003, Munich, Germany, September 2003 : Proceedings. New York: Springer-Verlag.
Chicago
Stiller Burkhard, Carle George, Karsten Martin and Reichl Peter. 2003. Group Communications and Charges : Technology and Business Models : 5th COST 264 International Workshop on Networked Group Communications, NGC 2003 and 3rd International Workshop on Internet Charging and QoS Technologies, ICQT 2003, Munich, Germany, September 2003 : Proceedings. New York: Springer-Verlag.
Harvard
Stiller B., Carle G., Karsten M. and Reichl P. (2003). Group Communications and Charges : Technology and Business Models : 5th COST 264 International Workshop on Networked Group Communications, NGC 2003 and 3rd International Workshop on Internet Charging and QoS Technologies, ICQT 2003, Munich, Germany, September 2003 : Proceedings. New York: Springer-Verlag.
MLA
Stiller Burkhard, Carle George, Karsten Martin and Reichl Peter. Group Communications and Charges : Technology and Business Models : 5th COST 264 International Workshop on Networked Group Communications, NGC 2003 and 3rd International Workshop on Internet Charging and QoS Technologies, ICQT 2003, Munich, Germany, September 2003 : Proceedings. New York: Springer-Verlag. 2003.