@article{DE_1996_32_2_a6,
     author = {V. A. Pliss},
     title = {Description of the nonwandering set of a periodic system},
     journal = {Differencialʹnye uravneni\^a},
     pages = {193--200},
     publisher = {mathdoc},
     volume = {32},
     number = {2},
     year = {1996},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1996_32_2_a6/}
}