@article{DE_1972_8_6_a3,
     author = {V. A. Pliss},
     title = {Analysis of the necessity of the conditions of {Smale} and {Robbin} for structural stability for periodic systems of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {972--983},
     publisher = {mathdoc},
     volume = {8},
     number = {6},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_6_a3/}
}