@inproceedings{CLP-1990-SawamuraMYO90,
	author        = "Hajime Sawamura and Toshiro Minami and Kaoru Yocota and Kyoko Ohashi",
	booktitle     = "{Proceedings of the Seventh International Conference on Logic Programming}",
	isbn          = "0-262-73090-1",
	pages         = "405--424",
	publisher     = "{MIT Press}",
	title         = "{A Logic Programming Approach to Specifying Logics and Constructing Proofs}",
	year          = 1990,
}