Markus Kirchberg, Patrick C. K. Hung, Barbara Carminati, Chi-Hung Chi, Rajaraman Kanagasabai, Emanuele Della Valle, Kun-Chan Lan, Ling-Jyh Chen: 4th IEEE Asia-Pacific Services Computing Conference, IEEE APSCC 2009, Singapore, December 7-11 2009, Proceedings. IEEE 2009, ISBN 978-1-4244-5336-8