@article{DE_1972_8_3_a2,
     author = {D. A. Vzovsky},
     title = {The almost periodic solutions of certain nonlinear systems of differential equations with deviating argument},
     journal = {Differencialʹnye uravneni\^a},
     pages = {415--423},
     publisher = {mathdoc},
     volume = {8},
     number = {3},
     year = {1972},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1972_8_3_a2/}
}