@article{DE_1999_35_11_a4,
     author = {V. I. Elkin and D. G. Ivashko},
     title = {On the decomposition of three-dimensional nonlinear control systems},
     journal = {Differencialʹnye uravneni\^a},
     pages = {1473--1481},
     publisher = {mathdoc},
     volume = {35},
     number = {11},
     year = {1999},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DE_1999_35_11_a4/}
}