@article{DA_2009_16_4_a1,
     author = {V. G. Vizing},
     title = {Vertex colorings of graph with the majority restrictions on the consuming colors},
     journal = {Diskretnyj analiz i issledovanie operacij},
     pages = {21--30},
     publisher = {mathdoc},
     volume = {16},
     number = {4},
     year = {2009},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DA_2009_16_4_a1/}
}