@article{DE_1987_23_3_a30,
     author = {A. F. Philippov},
     title = {Structural instability of three-dimensional systems in an open domain of the parameter space},
     journal = {Differencialʹnye uravneni\^a},
     pages = {538--539},
     publisher = {mathdoc},
     volume = {23},
     number = {3},
     year = {1987},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1987_23_3_a30/}
}