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• Volume 27

Author: Zelinka, Bohdan

• Chajda, Ivan; Zelinka, Bohdan: Minimal compatible tolerances on lattices. (English). Czechoslovak Mathematical Journal, vol. 27 (1977), issue 3, pp. 452-459
• Zelinka, Bohdan: A remark on systems of maximal cliques of a graph. (English). Czechoslovak Mathematical Journal, vol. 27 (1977), issue 4, pp. 617-618
• Zelinka, Bohdan: Tolerance relations on periodic commutative semigroups. (English). Czechoslovak Mathematical Journal, vol. 27 (1977), issue 1, pp. 167-169