1. A. O. Arigoni: “Mathematical development arising from 'semantical implication’ and the evaluation of membership characteristic functions”, Fuzzy Sets and Systems, No.4, 167–183, (1980).
2. A. O. Arigoni: “Transformational-generative grammar for describing formal properties”, Fuzzy Sets and Systems, No.8, 311–322 (1982).
3. A. O. Arigoni, C. Furlanello and V. Maniezzo: “Irrelevant Features in Concept Learning”, Proceedings of the 3rd Int. Conf. on Information Processing and Management of Uncertainty, IPMU-90, Paris, July 1990.
4. A. O. Arigoni and V. Maniezzo: “Intensive Representation of Inductively Acquired Concepts”, 10th Int. Conf. on Cybernetic and System Research, Wien, 1990.
5. A. O. Arigoni and V. Maniezzo: “Conceptual abstraction: a context-depending simplification of concept representations”, Working Notes of the Approximation and Abstraction of Computational Theories '92”, San Jose, Calif. 1992.