Author: Chvalina, Jan

Chvalina, Jan: Autonomous automata and closures with the same endomorphism monoids. (English). Archivum Mathematicum, vol. 12 (1976), issue 4, pp. 213-223
Chvalina, Jan: Concerning a non-realizability of connected compact semi-separated closure operations by set-systems. (English). Archivum Mathematicum, vol. 12 (1976), issue 1, pp. 45-51
Chvalina, Jan: On homeomorphic topologies and equivalent set-systems. (English). Archivum Mathematicum, vol. 12 (1976), issue 2, pp. 107-115

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