@article{DAN_1958_121_6_a4,
     author = {G. S. Makaeva},
     title = {The asymptotic behaviour of solutions to differential equations involving a small parameter, whose systems of 
},
     journal = {Doklady Akademii Nauk},
     pages = {973--976},
     publisher = {mathdoc},
     volume = {121},
     number = {6},
     year = {1958},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1958_121_6_a4/}
}