A proof of Gr\"unbaum's conjecture on the acyclic $5$-colorability of planar graphs
Doklady Akademii Nauk, Tome 231 (1976) no. 1, pp. 18-20
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@article{DAN_1976_231_1_a2,
author = {O. V. Borodin},
title = {A proof of {Gr\"unbaum's} conjecture on the acyclic $5$-colorability of planar graphs},
journal = {Doklady Akademii Nauk},
pages = {18--20},
publisher = {mathdoc},
volume = {231},
number = {1},
year = {1976},
language = {ru},
url = {http://geodesic.mathdoc.fr/item/DAN_1976_231_1_a2/}
}
O. V. Borodin. A proof of Gr\"unbaum's conjecture on the acyclic $5$-colorability of planar graphs. Doklady Akademii Nauk, Tome 231 (1976) no. 1, pp. 18-20. http://geodesic.mathdoc.fr/item/DAN_1976_231_1_a2/