Nobutaka Matsumoto, Takahiro Miyamoto, Michiaki Hayashi, Hideaki Tanaka. BPEL Driven Policy Management of Virtualized Network Resources for IMS Environments. In Yan Ma, Deokjai Choi, Shingo Ata, editors, Challenges for Next Generation Network Operations and Service Management, 11th Asia-Pacific Network Operations and Management Symposium, APNOMS 2008, Beijing, China, October 22-24, 2008. Proceedings. Volume 5297 of Lecture Notes in Computer Science, pages 317-326, Springer, 2008. [doi]