@article{DE_1989_25_3_a20,
     author = {R. P. Kuzmina},
     title = {On the solution of singularly perturbed equations on a large interval of the independent variable},
     journal = {Differencialʹnye uravneni\^a},
     pages = {527--529},
     publisher = {mathdoc},
     volume = {25},
     number = {3},
     year = {1989},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1989_25_3_a20/}
}