S. Vaidyanathan, and K. Madhavan. International Journal of Computer Science, Engineering and Information Technology (IJCSEIT), 1 (5):
85-95(December 2011)
D. Xu, H. Miao, and N. Philbert. Computer and Information Science, 2009. ICIS 2009. Eighth IEEE/ACIS International Conference on, page 1035 -1040. (June 2009)
S. Zhang, and S. Goddard. International Conference on Information Technology: Coding and Computing, 2005. ITCC 2005, 2, page 443-- 448 Vol. 2. IEEE, (April 2005)
H. Zaragoza, B. Cambazoglu, and R. Baeza-Yates. Proceedings of the 19th ACM international conference on Information and knowledge management, page 529--538. New York, NY, USA, ACM, (2010)
Y. Konishi, H. Tokoro, M. Nishino, and S. Miyashita. Abstract Book of the XXIII IUPAP International Conference on Statistical Physics, Genova, Italy, (9-13 July 2007)