@inproceedings{SIGMOD-1994-CatarciS,
	author        = "Tiziana Catarci and Giuseppe Santucci",
	booktitle     = "{Proceedings of the 24th ACM SIGMOD International Conference on Management of Data}",
	cdrom         = "SIGMOD94/P515.PDF",
	doi           = "10.1145/191839.191976",
	pages         = "515",
	publisher     = "{ACM Press}",
	title         = "{Query by Diagram: A Graphical Environment for Querying Databases}",
	year          = 1994,
}