Vanitha.M, Jayapratha.T, Subramani.K, and Pradeepa.T. International Journal on Recent and Innovation Trends in Computing and Communication, 3 (3):
1497--1502(March 2015)
S. Weber, Y. Kalev, S. Ries, and M. Mühlhäuser. Proceedings of the 5th International Conference on Ubiquitous Information Management and Communication, page 29:1--29:10. New York, NY, USA, ACM, (2011)