@article{DE_1994_30_2_a2,
     author = {A. M. Samoilenko and Yu. V. Teplinskii},
     title = {The truncation method in the construction of invariant tori of countable systems of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {204--212},
     publisher = {mathdoc},
     volume = {30},
     number = {2},
     year = {1994},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1994_30_2_a2/}
}