S. Hadzhikoleva1, and and Emil Hadzhikolev2. International Journal of Information Technology, Modeling and Computing (IJITMC), 2 (1):
01-09(February 2014)
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)