@article{SM_1985_51_1_a9,
     author = {A. V. Babin},
     title = {Construction and investigation of solutions of differential equations by methods in the theory of approximation of functions},
     journal = {Sbornik. Mathematics},
     pages = {141--167},
     year = {1985},
     volume = {51},
     number = {1},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1985_51_1_a9/}
}