@article{DE_1983_19_7_a5,
     author = {G. D. Vasil'kov and V. P. Zagonov},
     title = {The accuracy of a method for the numerical solution of ordinary differential equations with variable coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1146--1154},
     publisher = {mathdoc},
     volume = {19},
     number = {7},
     year = {1983},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1983_19_7_a5/}
}