@article{DE_2003_39_11_a6,
     author = {S. V. Kornev and V. V. Obukhovskii},
     title = {On {Nonsmooth} {Multivalent} {Guiding} {Functions}},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1497--1502},
     year = {2003},
     volume = {39},
     number = {11},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_2003_39_11_a6/}
}