Val Tannen, Peter Buneman, Shamim A. Naqvi. Structural Recursion as a Query Language. In Paris C. Kanellakis, Joachim W. Schmidt, editors, Database Programming Languages: Bulk Types and Persistent Data. 3rd International Workshop, August 27-30, 1991, Nafplion, Greece, Proceedings. pages 9-19, Morgan Kaufmann, 1991. [doi]
Abstract is missing.