1. J.-Y.Beziau, “Universal logic”, in Logica’94 - Proceedings of the 8th International Symposium, T.Childers & O.Majer (eds), Prague, 1994, pp.73-93.
2. J.-Y.Beziau, “Théorie législative de la négation pure”, Logique et Analyse, 147-148 (1994), pp.209-225.
3. J.-Y.Beziau, “New light on the square of oppositions and its nameless corner”, Logical Investigations, 10, (2003), pp.218-232.
4. J.-Y.Beziau, “Logic is not logic”, Abstracta 6 (2010), pp.73-102.
5. J.-Y.Beziau, “What is a logic? - Towards axiomatic emptiness", Logical Investigations, 16 (2010), pp.272-279.