A. Park, B. Beck, D. Fletche, P. Lam, and H. Tsang. 2016 IEEE/ACM International Conference on Advances in Social Networks Analysis and Mining (ASONAM), page 880-883. (August 2016)
N. Padhy, D. Mishra, and R. Panigrahi. International Journal of Computer Science, Engineering and Information Technology (IJCSEIT), 2 (3):
43-58(June 2012)