4-critical 4-valent planar graphs constructed with crowns.
Koester, G.
Mathematica Scandinavica, Tome 67 (1990), p. 15-22 / Harvested from Göttinger Digitalisierungszentrum
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Publié le : 1990-01-01
EUDML-ID : urn:eudml:doc:167117 
@article{GDZPPN002360632,
     title = {4-critical 4-valent planar graphs constructed with crowns.},
     journal = {Mathematica Scandinavica},
     volume = {67},
     year = {1990},
     pages = {15-22},
     zbl = {0723.05056},
     url = {http://dml.mathdoc.fr/item/GDZPPN002360632}
}

Koester, G. 4-critical 4-valent planar graphs constructed with crowns.. Mathematica Scandinavica, Tome 67 (1990) pp. 15-22. http://gdmltest.u-ga.fr/item/GDZPPN002360632/