@inproceedings{SIGMOD-1978-Berg,
	author        = "John L. Berg",
	booktitle     = "{Proceedings of the Eighth ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD78/P118.PDF",
	doi           = "10.1145/509252.509282",
	pages         = "118",
	publisher     = "{ACM}",
	title         = "{The Practitioner’s Viewpoint}",
	year          = 1978,
}