@article{TMF_1978_37_1_a12,
     author = {A. S. Kovalev},
     title = {Frequence spectrum of monochromatic vibrations of a~one-dimensional nonlinear chain of finite length},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {135--144},
     year = {1978},
     volume = {37},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1978_37_1_a12/}
}