N. Dokoohaki, and M. Matskin. Mobile Ubiquitous Computing, Systems, Services and Technologies, 2007. UBICOMM '07. International Conference on, page 263 -268. (November 2007)
S. Staab, T. Walter, G. Gröner, and F. Parreiras. Reasoning Web. Semantic Technologies for Software Engineering, volume 6325 of Lecture Notes in Computer Science, Springer Berlin / Heidelberg, 10.1007/978-3-642-15543-7_3.(2010)