By Steprans J.   Sostak A.P.   in Topology and its Applications

ISSN:0166-8641|101|3|213-229

Elsevier‎(2000)‎

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By Asmuss S.V.   Sostak A.P.   in Fuzzy Sets and Systems

ISSN:0165-0114|105|2|249-257

Elsevier‎(1999)‎

Access to resources Favorite 14.129708