@article{DE_1984_20_11_a23,
     author = {V. S. Kozlova},
     title = {Rough singular points situated on the line of discontinuity of the right- hand sides of systems of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1998--1999},
     publisher = {mathdoc},
     volume = {20},
     number = {11},
     year = {1984},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1984_20_11_a23/}
}