@inproceedings{VLDB-1991-ZobelTS,
	author        = "Justin Zobel and James A. Thom and Ron Sacks-Davis",
	booktitle     = "{Proceedings of the 17th International Conference on Very Large Data Bases}",
	ee            = "http://www.vldb.org/conf/1991/P091.PDF",
	isbn          = "1-55860-150-3",
	pages         = "91--102",
	publisher     = "{Morgan Kaufmann}",
	title         = "{Efficiency of Nested Relational Document Database Systems}",
	year          = 1991,
}