@article{TM_1991_200_a17,
     author = {A. Yu. Kolesov and E. F. Mishchenko},
     title = {On the mechanism of destruction of invariant torus of {Van-der} {Pole} relaxation system with harmonic influence on the slow variable},
     journal = {Trudy Matematicheskogo Instituta imeni V.A. Steklova},
     pages = {197--204},
     publisher = {mathdoc},
     volume = {200},
     year = {1991},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TM_1991_200_a17/}
}