@article{IVM_1962_4_a2,
     author = {V. I. Voilokov},
     title = {Approximate integration of non-linear differential equations of oscillatory motion with one degree of freedom},
     journal = {Izvesti\^a vys\v{s}ih u\v{c}ebnyh zavedenij. Matematika},
     pages = {19--32},
     publisher = {mathdoc},
     number = {4},
     year = {1962},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/IVM_1962_4_a2/}
}