A. Khoshkbarforoushha, P. Jamshidi, and F. Shams. Proceedings of the 2010 ICSE Workshop on Emerging Trends in Software Metrics, page 67--74. New York, NY, USA, ACM, (2010)
X. Yang, L. Liu, N. Vaidya, and F. Zhao. The First Annual International Conference on Mobile and Ubiquitous
Systems: Networking and Services (MOBIQUITOUS), page 114 - 123. (August 2004)
S. Bush, A. Kulkarni, S. Evans, and L. Galup. 7th International IS&N Conference, Intelligence in Services and
Networks (ISN) '00, Kavouri, Athens, Greece, (February 2000)