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On Certain Reductions in the Four Color Problem - MaRDI portal

On Certain Reductions in the Four Color Problem

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Publication:5769496

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DOI10.1002/SAPM1937161159zbMath0018.33301OpenAlexW2327647026MaRDI QIDQ5769496

Publication date: 1938

Published in: Journal of Mathematics and Physics (Search for Journal in Brave)

Full work available at URL: https://doi.org/10.1002/sapm1937161159

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