@inproceedings{VLDB-1977-AntonacciDST,
	author        = "Francesco Antonacci and P. Dell'Orco and V. N. Spadavecchia and Antonio Turtur",
	booktitle     = "{Proceedings of the Third International Conference on Very Large Data Bases}",
	cdrom         = "VLDB77/P351.PDF",
	pages         = "351--358",
	publisher     = "{IEEE Computer Society}",
	title         = "{Structure and Implementation of a Relational Query Language for the Problem Solver}",
	year          = 1977,
}