2024-03-29T11:15:15Z
https://oai.zbmath.org/v1/
oai:zbmath.org:7307252
2021-02-08T14:14:40Z
05
Kardoš, František; Narboni, Jonathan
2021
7307252
English
Elsevier (Academic Press), London
https://zbmath.org/07307252
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Eur. J. Comb. 91, Article ID 103215, 8 p. (2021).
05C15; 05C22
On the 4-color theorem for signed graphs
j