@article{DE_1990_26_9_a21,
     author = {V. B. Bukashkin and V. G. Sushko},
     title = {Asymptotic expansion with respect to the small parameter of the solution of an equation of elliptic type with a discontinuous coefficient and right-hand side},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1636--1637},
     publisher = {mathdoc},
     volume = {26},
     number = {9},
     year = {1990},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1990_26_9_a21/}
}