1. Similarity relations and fuzzy orderings;Zadeh;Inf. Sci.,1971
2. Fuzzy subgroups and similarities;Formato;Soft Comput.,1999
3. On the structure of F-indistinguishability operators;Valverde;Fuzzy Sets and Systems,1985
4. C. Blake, C. Merz, UCI repository of machine learning databases. Irvine: University of California, Irvine, Department of Information and Computer Sciences, available on-line: http://www.ics.uci.edu/∼mlearn/MLRepository.html, 2004.
5. Learning differential diagnosis of erythemato-squamous diseases using voting feature intervals;Güvernir;Artif. Intell. Med.,1998