@article{RM_1970_25_2_a17,
     author = {Yu. A. Mitropol'skii and V. N. Chevelo},
     title = {Development of {Theory} {Nonlinear} {Vibrations} {(Fifth} {International} {Conference} on {Nonlinear} {Vibrations,} {Kiev)}},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     year = {1970},
     volume = {25},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/RM_1970_25_2_a17/}
}