On problems concerning uniqueness of the extension of linear operations on linear spaces
František Charvát (1971)
Commentationes Mathematicae Universitatis Carolinae
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František Charvát (1971)
Commentationes Mathematicae Universitatis Carolinae
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Jiří Reif (1979)
Commentationes Mathematicae Universitatis Carolinae
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Josef Daneš (1971)
Commentationes Mathematicae Universitatis Carolinae
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