Rational Transitivity and its Models. - Hassan Bezzazi; Ramón Pino Pérez (ISMVL, 1996)

Beyond Rational Monotony: Some Strong Non-Horn Rules for Nonmonotonic Inference Relations. - Hassan Bezzazi; David Makinson; Ramón Pino Pérez (J. Log. Comput., 1997)

Analysing Rational Properties of Change Operators Based on Forward Chaining. - Hassan Bezzazi; Stéphane Janot; Sébastien Konieczny; Ramón Pino Pérez (Transactions and Change in Logic Databases, 1998)