@inproceedings{SIGMOD-1991-LouO,
	author        = "Yanjun Lou and Z. Meral Özsoyoglu",
	booktitle     = "{Proceedings of the 21st ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD91/P198.PDF",
	doi           = "10.1145/115790.115819",
	pages         = "198--207",
	title         = "{LLO: An Object-Oriented Deductive Language with Methods and Method Inheritance}",
	year          = 1991,
}