@article{DAN_1968_178_2_a8,
     author = {G. N. Medvedev},
     title = {The asymptotic solution of certain systems of differential equations with deviating argument},
     journal = {Doklady Akademii Nauk},
     pages = {293--295},
     publisher = {mathdoc},
     volume = {178},
     number = {2},
     year = {1968},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1968_178_2_a8/}
}