@inproceedings{LOPSTR-2004-SatoK,
	author        = "Taisuke Sato and Yoshitaka Kameya",
	booktitle     = "{Revised Selected Papers of the 14th International Symposium on Logic Based Program Synthesis and Transformation}",
	doi           = "10.1007/11506676_8",
	isbn          = "3-540-26655-0",
	pages         = "117--132",
	publisher     = "{Springer International Publishing}",
	series        = "{Lecture Notes in Computer Science}",
	title         = "{Negation Elimination for Finite PCFGs}",
	volume        = 3573,
	year          = 2004,
}