@inproceedings{SIGMOD-1989-Gray,
	author        = "Jim Gray",
	booktitle     = "{Proceedings of the 19th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD89/P002.PDF",
	pages         = "2",
	title         = "{Database Performance Metrics}",
	year          = 1989,
}