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Václav Koubek (1977)
Commentationes Mathematicae Universitatis Carolinae
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Václav Koubek (1977)
Commentationes Mathematicae Universitatis Carolinae
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Jan Pelant (1977)
Commentationes Mathematicae Universitatis Carolinae
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Karel Drbohlav (1963)
Commentationes Mathematicae Universitatis Carolinae
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