"On the 4-color theorem for signed graphs."

Frantisek Kardos, Jonathan Narboni (2021)

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DOI: 10.1016/J.EJC.2020.103215

access: closed

type: Journal Article

metadata version: 2020-10-16

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Frantisek Kardos, Jonathan Narboni:
On the 4-color theorem for signed graphs. Eur. J. Comb. 91: 103215 (2021)

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