@inproceedings {4271,
	title = {Efficient Hierarchical Quorums in Unstructured Peer-to-Peer Networks},
	booktitle = {OnTheMove Federated Conferences \& Workshops (OTM)},
	year = {2009},
	doi = {10.1007/978-3-642-05148-7_14},
	author = {Kevin J. Henry and Colleen Swanson and Qi Xie and Khuzaima Daudjee}
}
