@inproceedings{LICS-2003-PistoreV,
	author        = "Marco Pistore and Moshe Y. Vardi",
	booktitle     = "{Proceedings of the 18th IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.2003.1210063",
	isbn          = "0-7695-1884-2",
	pages         = "234--243",
	publisher     = "{IEEE Computer Society}",
	title         = "{The Planning Spectrum — One, Two, Three, Infinity}",
	year          = 2003,
}