Paper Albert Rubio and Robert Nieuwenhuis. Paper 1992 and before Robert Nieuwenhuis and Albert Rubio. Theorem Proving with Ordering Constrained Clauses . In Deepak Kapur, editor, 11th CADE , LNAI 607, pages 477-491, Saratoga Springs, New York, 1992. Robert Nieuwenhuis and Albert Rubio.
Basic superposition is complete .
Robert Nieuwenhuis and Pilar Nivela. Efficient deduction in equality Horn logic by Horn-completion . Robert Nieuwenhuis, Fernando Orejas, and Albert Rubio. An Implementation of Clausal Rewriting . Robert Nieuwenhuis and Fernando Orejas.