The lattice of bi-numerations of arithmetic. II.
Marie Hájková (1971)
Commentationes Mathematicae Universitatis Carolinae
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Marie Hájková (1971)
Commentationes Mathematicae Universitatis Carolinae
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Josef Daneš (1970)
Commentationes Mathematicae Universitatis Carolinae
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Miroslav Sova (1971)
Commentationes Mathematicae Universitatis Carolinae
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