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"Infinite families of 4-chromatic Grötzsch-Sachs graphs."
Andrey A. Dobrynin, Leonid S. Melnikov (2008)
- Andrey A. Dobrynin, Leonid S. Melnikov:
Infinite families of 4-chromatic Grötzsch-Sachs graphs. J. Graph Theory 59(4): 279-292 (2008)
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