95 years of Otakar Borůvka
František Neuman (1994)
Czechoslovak Mathematical Journal
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František Neuman (1994)
Czechoslovak Mathematical Journal
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Pavol Marušiak (1974)
Matematický časopis
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Beloslav Riečan (1994)
Mathematica Slovaca
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Ladislav Nebeský (1994)
Czechoslovak Mathematical Journal
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