@article{DE_1989_25_5_a21,
     author = {A. Yu. Aleksandrov},
     title = {On the existence of recurrent solutions of a class of differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {902--903},
     publisher = {mathdoc},
     volume = {25},
     number = {5},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_5_a21/}
}