Kathryn L. Schenk, James R. Pinkert. An Algorithm for Servicing Multi-Relational Queries. In Diane C. P. Smith, editor, Proceedings of the 1977 ACM SIGMOD International Conference on Management of Data, Toronto, Canada, August 3-5, 1977. pages 10-20, ACM, 1977. [doi]
Abstract is missing.