@article{DAN_1964_159_6_a23,
     author = {M. M. Simkin},
     title = {The physical nature of steady motions in non-linear pulse systems},
     journal = {Doklady Akademii Nauk},
     pages = {1284--1286},
     publisher = {mathdoc},
     volume = {159},
     number = {6},
     year = {1964},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1964_159_6_a23/}
}