@unpublished {ElkinKeiVavasis,
	title = {Convex relaxation for finding planted influential nodes in a social network},
	year = {2013},
	note = {Arxiv link: <a href="http://arxiv.org/abs/1307.4047">http://arxiv.org/abs/1307.4047</a>},
	author = {L. Elkin and Ting Kei Pong and S. Vavasis}
}
