Voir la notice de l'article provenant de la source Math-Net.Ru
@article{DE_1968_4_9_a0, author = {V. M. Millionshchikov}, title = {Recurrent and almost periodic limit solutions of non-autonomous systems}, journal = {Differencialʹnye uravneni\^a}, pages = {1555--1559}, publisher = {mathdoc}, volume = {4}, number = {9}, year = {1968}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1968_4_9_a0/} }
V. M. Millionshchikov. Recurrent and almost periodic limit solutions of non-autonomous systems. Differencialʹnye uravneniâ, Tome 4 (1968) no. 9, pp. 1555-1559. http://geodesic.mathdoc.fr/item/DE_1968_4_9_a0/