Oystein Ore

The four-color problem (Pure and applied mathematics; a series of monographs and textbooks)

1967 · ENGLISH · DJVU

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Cardano: The Gambling Scholar (Princeton Legacy Library, 5063)

ENGLISH · PDF

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I grafi e le loro applicazioni

1965 · ITALIAN · PDF

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Invitation to Number Theory

2016 · ENGLISH · PDF

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Les graphes et leurs applications

1970 · FRENCH · DJVU

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Number Theory and Its History

ENGLISH · DJVU

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Graphs and their Uses

1991 · ENGLISH · PDF

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The Four-Color Problem

ENGLISH · PDF

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The four-color problem

1967 · ENGLISH · DJVU

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CARDANO - THE GAMBLING SCHOLAR

1953 · ENGLISH · DJVU

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Invitation to number theory

1969 · ENGLISH · DJVU

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Invitation to number theory

1969 · ENGLISH · DJVU

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Graphs and their uses

1996 · ENGLISH · DJVU

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Graphs and their uses

1996 · ENGLISH · DJVU

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Number theory and its history

1988 · ENGLISH · DJVU

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Theory of graphs

1962 · ENGLISH · DJVU

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