1. On Measures of Information and their Characterizations;Aczel,1975
2. Cluster Analysis by Optimal Decomposition of Induced Fuzzy Sets;Backer,1978
3. A definition of a nonprobabilistic entropy in the setting of fuzzy sets theory;De Luca;Information and Control,1972
4. Les indices de flou;Emptoz,1978
5. Utilisation des pseudoquestionnaires dans une approche métrique des problèmes de reconnaissance de formes;Emptoz,1978