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ORCID"Proof of a conjecture of Dirac concerning 4-critical planar graphs."
H. L. Abbott, Meir Katchalski, Bing Zhou (1994)
- H. L. Abbott, Meir Katchalski, Bing Zhou
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Proof of a conjecture of Dirac concerning 4-critical planar graphs. Discret. Math. 132(1-3): 367-371 (1994)
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