@article {1972836,
	title = {Discovering target groups in social networking sites: An effective method for maximizing joint influential power},
	journal = {Electronic Commerce Research and Applications},
	volume = {11},
	year = {2012},
	month = {2012},
	pages = {318-334},
	keywords = {BIS},
	author = {Xu,Kaiquan and Guo,Xitong and Li,Jiexun and Lau,Raymond Y.K. and Liao,Stephan Shaoyi}
}