@article{DE_1966_2_8_a15, author = {V. A. Kobyshev and B. I. Shakhtarin}, title = {Investigation of a nonlinear system}, journal = {Differencialʹnye uravneni\^a}, pages = {1132--1133}, publisher = {mathdoc}, volume = {2}, number = {8}, year = {1966}, language = {ru}, url = {http://geodesic.mathdoc.fr/item/DE_1966_2_8_a15/} }