@article{ZVMMF_1971_11_6_a9,
     author = {N. A. Tikhonov},
     title = {Harmonic beats in a nonlinear dispersive medium, and the determination from them of properties of the medium},
     journal = {\v{Z}urnal vy\v{c}islitelʹnoj matematiki i matemati\v{c}eskoj fiziki},
     pages = {1476--1487},
     publisher = {mathdoc},
     volume = {11},
     number = {6},
     year = {1971},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ZVMMF_1971_11_6_a9/}
}