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Author: Chajda, Ivan

• Chajda, Ivan; Dalík, Josef; Niederle, Josef; Veselý, Vítězslav; Zelinka, Bohdan: How to draw tolerance lattices of finite chains. (English). Archivum Mathematicum, vol. 16 (1980), issue 3, pp. 161-165
• Chajda, Ivan: Relational classes and their characterizations. (English). Archivum Mathematicum, vol. 16 (1980), issue 4, pp. 199-203