@inProceedings{infocom03,
	title = "Trust-Preserving Set Operations",
	author = "Ruggero Morselli and Samrat Bhattacharjee and Jonathan Katz and Pete Keleher",
	booktitle = {The 23rd Conference of the IEEE Communications Society (Infocom)},
	month = {March},
	year = {2004},
}