@article{DAN_1982_265_3_a3,
     author = {S. A. Lomov},
     title = {Analytic solutions of singularly perturbed problems},
     journal = {Doklady Akademii Nauk},
     pages = {529--533},
     publisher = {mathdoc},
     volume = {265},
     number = {3},
     year = {1982},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1982_265_3_a3/}
}