@article{SM_2016_207_12_a4,
     author = {D. V. Kostin},
     title = {Bifurcations of resonance oscillations and optimization of the trigonometric impulse by the nonsymmetry coefficient},
     journal = {Sbornik. Mathematics},
     pages = {1709--1728},
     publisher = {mathdoc},
     volume = {207},
     number = {12},
     year = {2016},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_2016_207_12_a4/}
}