@article{VSGU_2018_24_4_a5,
     author = {V. A. Sobolev and E. A. Shchepakina and E. A. Tropkina},
     title = {Parametrization of invariant manifolds of slow motions},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {33--40},
     publisher = {mathdoc},
     volume = {24},
     number = {4},
     year = {2018},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2018_24_4_a5/}
}