Alexander Borgida, Ronald J. Brachman, Deborah L. McGuinness, Lori Alperin Resnick. CLASSIC: A Structural Data Model for Objects. In James Clifford, Bruce G. Lindsay, David Maier, editors, Proceedings of the 1989 ACM SIGMOD International Conference on Management of Data, Portland, Oregon, May 31 - June 2, 1989. pages 58-67, ACM Press, 1989. [doi]
Abstract is missing.