Managing Virtualization of Networks and Services : 18th IFIP/IEEE International Workshop on Distributed Systems: Operations and Management, DSOM 2007, San José, CA, USA, October 29-31, 2007, Proceedings - Clemm, Alexander (Herausgeber); Zambenedetti Granville, Lisandro (Herausgeber); Stadler, Rolf (Herausgeber) (Computer Communication Networks and Telecommunications, 2007)