@article{DE_1997_33_7_a13,
     author = {I. A. Savin},
     title = {On the accuracy, uniform with respect to the small parameter, of a modified {Samarski{\v\i}} scheme for a singularly perturbed equation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {963--966},
     publisher = {mathdoc},
     volume = {33},
     number = {7},
     year = {1997},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1997_33_7_a13/}
}