1. A theorem on implication functions defined from triangular norms;Dubois;Stochastica,1984
2. On fuzzy implication operators;Fodor;Fuzzy Sets and Systems,1991
3. A new look at fuzzy connectives;Fodor;Fuzzy Sets and Systems,1993
4. Non-conventional conjunctions and implications in fuzzy logic;Fodor,1993
5. Über logische Verknüpfungen unscharfer Aussagen und deren zugehörige Bewertungsfunktionen;Hamacher,1975