@inproceedings{CIKM-2003-Liben-NowellK,
	author        = "David Liben-Nowell and Jon M. Kleinberg",
	booktitle     = "{Proceedings of the 12th ACM International Conference on Information and Knowledge Management}",
	doi           = "10.1145/956863.956972",
	isbn          = "1-58113-723-0",
	pages         = "556--559",
	publisher     = "{ACM}",
	title         = "{The link prediction problem for social networks}",
	year          = 2003,
}