On modifications of topologies without axioms
Josef Šlapal (1988)
Archivum Mathematicum
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Josef Šlapal (1988)
Archivum Mathematicum
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Josef Šlapal (1988)
Archivum Mathematicum
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Jiří Esterka (1974)
Archivum Mathematicum
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Basil K. Papadopoulos (1991)
Czechoslovak Mathematical Journal
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