@article{DAN_1988_303_1_a16,
     author = {S. A. Trushin and M. M. Khapaev and G. V. Sholin},
     title = {Investigation of singularly perturbed equations that describe},
     journal = {Doklady Akademii Nauk},
     pages = {74--77},
     publisher = {mathdoc},
     volume = {303},
     number = {1},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_303_1_a16/}
}