@inproceedings{VLDB-1994-ZemankovaI,
	author        = "Maria Zemankova and Yannis E. Ioannidis",
	booktitle     = "{Proceedings of the 20th International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1994/P752.PDF",
	isbn          = "1-55860-153-8",
	pages         = "752--753",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Scientific Databases — State of the Art and Future Directions}",
	year          = 1994,
}