1. Asperti A., Longo G. Categories, Types and Structures, M.I.T. Press, Boston, 1991.
2. Badiou A. Le Nombre et les nombres, Seuil, 1990.
3. Bailly F. “About the emergence of invariances in physics: from “substantial” conservation to formal invariance”, in Quantum Mechanics, Mathematics, Cognition and Action, (M. Mugur-Schächter, A. van der Merwe, eds.), Kluwer, New York, pp. 369–388, 2002.
4. Bailly F., Longo G. “Objective and Epistemic Complexity in Biology” Invited lecture, Proceedings of the International Conference on Theoretical Neurobiology, (N. D. Singh, ed.), National Brain Research Centre, New Delhi, INDIA, pp. 62–79, 2003.
5. Bailly F., Longo G. “Space, Time and Cognition: from The Standpoint of Mathematics and Natural Sciences” in Mind and Causality, (Peruzzi, ed.), Benjamins, Amsterdam, pp. 149–199, 2004.