@inproceedings{SIGMOD-1992-KiferKS,
	author        = "Michael Kifer and Won Kim and Yehoshua Sagiv",
	booktitle     = "{Proceedings of the 22nd ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD92/P393.PDF",
	doi           = "10.1145/130283.130342",
	pages         = "393--402",
	title         = "{Querying Object-Oriented Databases}",
	year          = 1992,
}