@inproceedings{SIGMOD-1982-MaierW,
	author        = "David Maier and David Scott Warren",
	booktitle     = "{Proceedings of the 12th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD82/P001.PDF",
	doi           = "10.1145/582353.582355",
	pages         = "1--7",
	publisher     = "{ACM Press}",
	title         = "{Specifying Connections for a Universal Relation Scheme Database}",
	year          = 1982,
}