@article{DAN_1988_300_5_a8,
     author = {G. I. Shishkin},
     title = {A difference scheme for a singularly perturbed equation of},
     journal = {Doklady Akademii Nauk},
     pages = {1066--1070},
     publisher = {mathdoc},
     volume = {300},
     number = {5},
     year = {1988},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1988_300_5_a8/}
}