@article{DAN_1974_217_5_a11,
     author = {A. M. Il'in and Yu. P. Gor'kov and E. F. Lelikova},
     title = {Method of matching of asymptotic expansions},
     journal = {Doklady Akademii Nauk},
     pages = {1033--1036},
     publisher = {mathdoc},
     volume = {217},
     number = {5},
     year = {1974},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1974_217_5_a11/}
}