"Planar digraphs of digirth four are 2-colourable."

Zhentao Li, Bojan Mohar (2016)

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DOI: —

access: open

type: Informal or Other Publication

metadata version: 2018-08-13

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Zhentao Li, Bojan Mohar:
Planar digraphs of digirth four are 2-colourable. CoRR abs/1606.06114 (2016)

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