@article{DAN_1989_304_4_a0,
     author = {A. O. Abduvaliev and N. Kh. Rozov and V. G. Sushko},
     title = {Asymptotic representations of solutions of some singularly},
     journal = {Doklady Akademii Nauk},
     pages = {777--780},
     publisher = {mathdoc},
     volume = {304},
     number = {4},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_304_4_a0/}
}