@article{DAN_1970_191_6_a15,
     author = {M. I. Rabinovich},
     title = {An asymptotic method in the theory of nonlinear oscillations of distributed systems},
     journal = {Doklady Akademii Nauk},
     pages = {1253--1256},
     publisher = {mathdoc},
     volume = {191},
     number = {6},
     year = {1970},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1970_191_6_a15/}
}