@inproceedings{CL-2000-BaralTTK,
	author        = "Chitta Baral and Le-Chi Tuan and Raul Trejo and Vladik Kreinovich",
	booktitle     = "{Proceedings of the First International Conference on Computational Logic}",
	doi           = "10.1007/3-540-44957-4_59",
	isbn          = "3-540-67797-6",
	pages         = "882--896",
	publisher     = "{Springer-Verlag}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Computational Complexity of Planning Based on Partial Information about the System’s Present and Past States}",
	volume        = 1861,
	year          = 2000,
}