@article {3971,
	title = {Implementing Temporal Integrity Constraints Using an Active DBMS},
	journal = {IEEE Transactions on Knowledge and Data Engineering (TKDE)},
	volume = {7},
	year = {1995},
	pages = {566--582},
	doi = {10.1109/69.404030},
	author = {Jan Chomicki and David Toman}
}
