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Author: Drewniak, Józef

• Drewniak, Józef; Dudziak, Urszula: Preservation of properties of fuzzy relations during aggregation processes. (English). Kybernetika, vol. 43 (2007), issue 2, pp. 115-132
• Drewniak, Józef; Pȩkala, Barbara: Properties of fuzzy relations powers. (English). Kybernetika, vol. 43 (2007), issue 2, pp. 133-142