Barrett R. Bryant, Aiqin Pan. Two-Level Grammar: A Funtional/Logic Query Language for Database and Knowledge-Base Systems. In Andrei Voronkov, editor, Logic Programming and Automated Reasoning,International Conference LPAR 92, St. Petersburg, Russia, July 15-20, 1992, Proceedings. Volume 624 of Lecture Notes in Computer Science, pages 78-83, Springer, 1992.
Abstract is missing.