Remarks on reflections
Miroslav Hušek (1966)
Commentationes Mathematicae Universitatis Carolinae
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Miroslav Hušek (1966)
Commentationes Mathematicae Universitatis Carolinae
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Miroslav Hušek (1964)
Commentationes Mathematicae Universitatis Carolinae
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Karel Drbohlav (1965)
Commentationes Mathematicae Universitatis Carolinae
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