@article{DE_1972_8_10_a19,
     author = {N. N. Dedok},
     title = {The singular points of the {Darboux} differential equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1880--1881},
     publisher = {mathdoc},
     volume = {8},
     number = {10},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_10_a19/}
}