@article{DAN_1978_240_5_a3,
     author = {M. M. Khapaev and O. V. Anashkin},
     title = {On the investigation of stability in systems of ordinary differential equations with almost-periodic coefficients},
     journal = {Doklady Akademii Nauk},
     pages = {1028--1031},
     publisher = {mathdoc},
     volume = {240},
     number = {5},
     year = {1978},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1978_240_5_a3/}
}