@article{DE_1972_8_12_a20,
     author = {N. S. Kolesnikova},
     title = {A class of third order differential equations with stationary critical singular points},
     journal = {Differencialʹnye uravneni\^a},
     pages = {2252--2254},
     publisher = {mathdoc},
     volume = {8},
     number = {12},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_12_a20/}
}