G. Piao, K. David, I. Karla, und R. Sigle. Proceedings of the 17th Annual IEEE International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC 2006), Helsinki, Finland, (September 2006)
R. Kusber, N. Brgulja, und K. David. Future Computing, Service Computation, Cognitive, Adaptive, Content, Patterns, 2009. COMPUTATIONWORLD '09. Computation World:, Seite 27-32. (November 2009)