@article{VUU_2012_4_a4,
     author = {N. N. Petrov and K. A. Shchelchkov},
     title = {To the problem of {Chernous'ko}},
     journal = {Vestnik Udmurtskogo universiteta. Matematika, mehanika, kompʹ\^uternye nauki},
     pages = {62--67},
     publisher = {mathdoc},
     number = {4},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VUU_2012_4_a4/}
}