MMA2009 P.Code=ShosA ===============------------------------------ First Name =Aleksandrs Last Name =Shostak Title =professor Institution =University of Latvia Street Address =Zellu 8 City =Riga State =Latvia Zip Code =LV-1002 Telephone =+371-67033725, +371-29109639 FAX =+371-67033701 E-mail =sostaks@lanet.lv URL= Title of talk and AMS Subject Classification=Fuzzy approximative systems and related structures, 54A40, 04A72