@article{DE_1971_7_7_a14,
     author = {I. I. Bezvershenko},
     title = {A certain method of constructing an approximate solution of first order differential equations},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1315--1319},
     publisher = {mathdoc},
     volume = {7},
     number = {7},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1971_7_7_a14/}
}