@article{DE_1973_9_6_a2,
     author = {N. A. Izobov},
     title = {A generalized {Euler} method for the integration of a linear system with variable coefficients},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1001--1018},
     publisher = {mathdoc},
     volume = {9},
     number = {6},
     year = {1973},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1973_9_6_a2/}
}