@inproceedings{CSL-2003-ChenF,
	author        = "Yijia Chen and Jörg Flum",
	booktitle     = "{Proceedings of the 12th EACSL Annual Conference / 17th International Workshop on Computer Science Logic}",
	doi           = "10.1007/978-3-540-45220-1_12",
	isbn          = "3-540-40801-0",
	pages         = "114--127",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Machine Characterization of the Classes of the W-Hierarchy}",
	volume        = 2803,
	year          = 2003,
}