1. Contrapositive symmetry of fuzzy implications;Fodor;Fuzzy Sets and Systems,1995
2. Fuzzy Preference Modelling and Multicriteria Decision Support;Fodor,1994
3. U. Hohle̋, Commutative, residuated l-monoids, preprint.
4. Fibred triangular norms;Jenei;Fuzzy Sets and Systems,1999
5. On continuous triangular norms;Jenei;Fuzzy Sets and Systems,1998