@article{DE_1995_31_7_a3,
     author = {N. N. Nefedov},
     title = {The method of differential inequalities for some classes of nonlinear singularly perturbed problems with internal layers},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1142--1149},
     publisher = {mathdoc},
     volume = {31},
     number = {7},
     year = {1995},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1995_31_7_a3/}
}