@inproceedings{LICS-2006-PanV,
	author        = "Guoqiang Pan and Moshe Y. Vardi",
	booktitle     = "{Proceedings of the 21th IEEE Symposium on Logic in Computer Science}",
	doi           = "10.1109/LICS.2006.25",
	isbn          = "0-7695-2631-4",
	pages         = "27--36",
	publisher     = "{IEEE Computer Society}",
	title         = "{Fixed-Parameter Hierarchies inside PSPACE}",
	year          = 2006,
}