@article{DE_1985_21_5_a23,
     author = {J. Diblik},
     title = {Sufficient conditions for existence of a pencil of $0$-curves of a first-order singular differential equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {898--899},
     publisher = {mathdoc},
     volume = {21},
     number = {5},
     year = {1985},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1985_21_5_a23/}
}