@article{VSGU_2014_7_a9,
     author = {V. V. Zaitsev and S. V. Lindt and A. N. Shilin},
     title = {Van der {Pol} and {Rayleigh} oscillators in discrete time},
     journal = {Vestnik Samarskogo universiteta. Estestvennonau\v{c}na\^a seri\^a},
     pages = {104--114},
     publisher = {mathdoc},
     number = {7},
     year = {2014},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/VSGU_2014_7_a9/}
}