@article{VMUMM_1983_2_a8,
     author = {A. O. Abduvaliev},
     title = {On a problem of {O.} {A.~Oleinik}},
     journal = {Vestnik Moskovskogo universiteta. Matematika, mehanika},
     pages = {42--45},
     year = {1983},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VMUMM_1983_2_a8/}
}