@inproceedings{STOC-2001-CanettiKPR,
	author        = "Ran Canetti and Joe Kilian and Erez Petrank and Alon Rosen",
	booktitle     = "{Proceedings of the 33rd Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/380752.380852",
	isbn          = "1-58113-349-9",
	pages         = "570--579",
	publisher     = "{ACM}",
	title         = "{Black-box concurrent zero-knowledge requires Ω(log n) rounds}",
	year          = 2001,
}