Leonidas Fegaras, David Maier. Towards an Effective Calculus for Object Query Languages. In Michael J. Carey, Donovan A. Schneider, editors, Proceedings of the 1995 ACM SIGMOD International Conference on Management of Data, San Jose, California, May 22-25, 1995. pages 47-58, ACM Press, 1995. [doi]
Abstract is missing.