@inproceedings{DLT-2007-BertoniR,
	author        = "Alberto Bertoni and Roberto Radicioni",
	booktitle     = "{Proceedings of the 11th International Conference on Developments in Language Theory}",
	doi           = "10.1007/978-3-540-73208-2_10",
	isbn          = "978-3-540-73207-5",
	pages         = "72--83",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Approximability and Non-approximability Results in Computing the Mean Speedup of Trace Monoids}",
	volume        = 4588,
	year          = 2007,
}