Gerhard Ringel

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Books by Gerhard Ringel (50 max)

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Topics in combinatorics and graph theory: essays in honour of Gerhard Ringel

1990

Gerhard Ringel, Rudolf Henn

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Färbungsprobleme auf Flächen und Graphen.

1959

Gerhard Ringel

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Map color theorem.

1974

Gerhard Ringel

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Topics in Combinatorics and Graph Theory: Essays in Honour of Gerhard Ringel

1992

Gerhard Ringel