@article{DE_1973_9_6_a19,
     author = {G. S. Osipenko},
     title = {The removal of the singularity of a differential equation in a certain case},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1146--1148},
     publisher = {mathdoc},
     volume = {9},
     number = {6},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_6_a19/}
}