@article{SVMO_2018_20_2_a5,
     author = {D. V. Sirotkin},
     title = {On the complexity for constructing a 3-colouring for planar graphs with short facets},
     journal = {\v{Z}urnal Srednevol\v{z}skogo matemati\v{c}eskogo ob\^{s}estva},
     pages = {199--205},
     publisher = {mathdoc},
     volume = {20},
     number = {2},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/SVMO_2018_20_2_a5/}
}