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• Volume 38

Author: Zelinka, Bohdan

• Zelinka, Bohdan: Partitionability of trees. (English). Czechoslovak Mathematical Journal, vol. 38 (1988), issue 4, pp. 677-681
• Zelinka, Bohdan: A remark on signed posets and signed graphs. (English). Czechoslovak Mathematical Journal, vol. 38 (1988), issue 4, pp. 673-676
• Zelinka, Bohdan: Small directed graphs as neighbourhood graphs. (English). Czechoslovak Mathematical Journal, vol. 38 (1988), issue 2, pp. 269-273
• Chajda, Ivan; Zelinka, Bohdan: Tolerances and congruences on implication algebras. (English). Czechoslovak Mathematical Journal, vol. 38 (1988), issue 2, pp. 207-217