@article{SM_1970_10_1_a6,
     author = {L. P. Shilnikov},
     title = {A~contribution to the problem of the structure of an extended neighborhood of a~rough equilibrium state of saddle-focus type},
     journal = {Sbornik. Mathematics},
     pages = {91--102},
     publisher = {mathdoc},
     volume = {10},
     number = {1},
     year = {1970},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/SM_1970_10_1_a6/}
}