@inproceedings{ICALP-v1-2006-ChenD,
	author        = "Xi Chen and Xiaotie Deng",
	booktitle     = "{Proceedings of the 33rd International Colloquium on Automata, Languages and Programming, Part I}",
	doi           = "10.1007/11786986_43",
	isbn          = "3-540-35904-4",
	pages         = "489--500",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{On the Complexity of 2D Discrete Fixed Point Problem}",
	volume        = 4051,
	year          = 2006,
}