Note: OCR errors may be found in this Reference List extracted from the full text article. ACM has opted to expose the complete List rather than only correct and linked references.

	1	1. BRACCHI, G., A. FEDELI and P. PAOLINI A Language for a relational data base management system. Proc. of the 6th Annual Princeton Conf. on Information Sciences and Systems 1972.
	2	Giampio Bracchi , A. Fedeli , P. Paolini, A relational data base management system, Proceedings of the ACM annual conference, p.1080-1089, August 01-01, 1972, Boston, Massachusetts, United States  [doi>10.1145/800194.805904]
	3	3. BRACCHI, G. and P. PAOLINI Architecture of an on-line information management system. ONLINE 72 Conference Proc. 1972.