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"Irreducible 4-critical triangle-free toroidal graphs."
Zdenek Dvorák, Jakub Pekárek (2017)
- Zdenek Dvorák, Jakub Pekárek
:
Irreducible 4-critical triangle-free toroidal graphs. Electron. Notes Discret. Math. 61: 383-389 (2017)
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