@inproceedings{STOC-1979-Maier,
	author        = "David Maier",
	booktitle     = "{Proceedings of the 11th Annual ACM Symposium on Theory of Computing}",
	doi           = "10.1145/800135.804425",
	pages         = "330--337",
	publisher     = "{ACM}",
	title         = "{Minimum Covers in the Relational Database Model}",
	year          = 1979,
}