@article{DE_1965_1_4_a7,
     author = {A. L. Teptin},
     title = {On certain properties of solutions of linear difference equations approximating differential equations in the interval of non-oscillation},
     journal = {Differencialʹnye uravneni\^a},
     pages = {478--498},
     publisher = {mathdoc},
     volume = {1},
     number = {4},
     year = {1965},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1965_1_4_a7/}
}