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The complete lattice (S(X), <=) of smooth fuzzy topologies
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Anisotropic semi-pseudometrics
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Subspaces of smooth fuzzy topologies and initial smooth fuzzy structures
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Fuzzy sets and systems: an international journal of soft computing and intelligent - ISSN 0165-0114-104:3 (1999) p. 423-433
Distances between fuzzy sets representing grey level images
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Fuzzy sets and systems: an international journal of soft computing and intelligent - ISSN 0165-0114-99:2 (1998) p. 135-149