@article{DE_1969_5_2_a4,
     author = {S. G. Kondratenya},
     title = {The class of systems of differential equations which have no solutions with mobile essentially singular points},
     journal = {Differencialʹnye uravneni\^a},
     pages = {263--272},
     publisher = {mathdoc},
     volume = {5},
     number = {2},
     year = {1969},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1969_5_2_a4/}
}