@inproceedings{VLDB-1980-ShneidermanT,
	author        = "Ben Shneiderman and Glenn Thomas",
	booktitle     = "{Proceedings of the Sixth International Conference on Very Large Data Bases}",
	cdrom         = "VLDB80/P033.PDF",
	pages         = "33--44",
	publisher     = "{IEEE Computer Society}",
	title         = "{Path Expressions for Complex Queries and Automatic Database Program Conversion}",
	year          = 1980,
}