@article{ND_2013_9_1_a0,
     author = {Olga B. Isaeva and Alexey S. Kuznetsov and Sergey P. Kuznetsov},
     title = {Hyperbolic chaos in parametric oscillations of a string},
     journal = {Russian journal of nonlinear dynamics},
     pages = {3--10},
     publisher = {mathdoc},
     volume = {9},
     number = {1},
     year = {2013},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/ND_2013_9_1_a0/}
}