Entity-Relationship Approach - ER 93: Proc./12th Intern. Conf. on the Entity-Relationship Approach. Arlington, Texas, USA, December 1993

Б2.5, Б5.2, Б1.3.

Entity-Relationship Approach - ER 93: Proc./12th Intern. Conf. on the Entity-Relationship Approach. Arlington, Texas, USA, December 1993Ed. by Elmasri R. A., Kouramajian V., Thalheim B..-Berlin, Heidelberg.: Springer, 1994.-Vol. 823.-531 p.-(Lecture Notes in Computer Science).