@article{PFMT_2012_4_a8,
     author = {R. I. Korzhik and S. P. Zhogal},
     title = {The regimes functioning of non-autonomous van der {Pol} oscillator with delay and external harmonic effect},
     journal = {Problemy fiziki, matematiki i tehniki},
     pages = {50--53},
     publisher = {mathdoc},
     number = {4},
     year = {2012},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/PFMT_2012_4_a8/}
}