Prof. RNDr. Beloslav Riečan, DrSc.---spiritus mathematicus Slovakiensis
Anatolij Dvurečenskij (2002)
Mathematica Slovaca
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Anatolij Dvurečenskij (2002)
Mathematica Slovaca
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(1999)
Acta Universitatis Carolinae. Mathematica et Physica
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А.П. Норден, Б.Н. Шапуков (1991)
Trudy Geometriceskogo Seminara
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(1972)
Czechoslovak Mathematical Journal
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