@inproceedings{ICALP-v1-2011-BermanBMRY,
	author        = "Piotr Berman and Arnab Bhattacharyya and Konstantin Makarychev and Sofya Raskhodnikova and Grigory Yaroslavtsev",
	booktitle     = "{Proceedings of the 38th International Colloquium on Automata, Languages and Programming, Part I}",
	doi           = "10.1007/978-3-642-22006-7_1",
	isbn          = "978-3-642-22005-0",
	pages         = "1--12",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Improved Approximation for the Directed Spanner Problem}",
	volume        = 6755,
	year          = 2011,
}