@inproceedings{SIGMOD-2000-YangYW,
	author        = "Jun Yang and Huacheng C. Ying and Jennifer Widom",
	booktitle     = "{Proceedings of the 30th ACM SIGMOD International Conference on Management of Data}",
	doi           = "10.1145/342009.336578",
	isbn          = "1-58113-217-4",
	pages         = "596",
	publisher     = "{ACM}",
	title         = "{TIP: A Temporal Extension to Informix}",
	year          = 2000,
}