@article{DAN_1989_305_1_a4,
     author = {V. I. Zubov},
     title = {The problem of the accumulation of oscillations in mechanical},
     journal = {Doklady Akademii Nauk},
     pages = {24--26},
     year = {1989},
     volume = {305},
     number = {1},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/DAN_1989_305_1_a4/}
}