@article{ZVMMF_1963_3_1_a7,
     author = {F. L. Chernous'ko},
     title = {On resonance in an essentially non-linear system},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {131--144},
     publisher = {mathdoc},
     volume = {3},
     number = {1},
     year = {1963},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1963_3_1_a7/}
}