@article{DE_1999_35_3_a2,
     author = {S. L. Sobolevskii},
     title = {Sections of sets of nonuniqueness points of first-order ordinary differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {304--309},
     publisher = {mathdoc},
     volume = {35},
     number = {3},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_3_a2/}
}