Stéphane Grumbach, Victor Vianu. Expressiveness and Complexity of Restricted Languages for Complex Objects. 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 111-122, Morgan Kaufmann, 1991. [doi]
Abstract is missing.