@article{DLT-J-2005-FukagawaA06,
	author        = "Daiji Fukagawa and Tatsuya Akutsu",
	doi           = "10.1142/S0129054106004054",
	journal       = "{International Journal of Foundations of Computer Science}",
	number        = 3,
	pages         = "703--729",
	publisher     = "{World Scientific}",
	title         = "{Fast Algorithms for Comparison of Similar Unordered Trees}",
	volume        = 17,
	year          = 2006,
}