@inproceedings{SIGMOD-1982-Berg,
	author        = "John L. Berg",
	booktitle     = "{Proceedings of the 12th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD82/P214.PDF",
	doi           = "10.1145/582353.582393",
	pages         = "214",
	publisher     = "{ACM Press}",
	title         = "{Database Management Systems in the 1990}",
	year          = 1982,
}