%0 Journal Article %A L. P. Shilnikov %T Theory of the bifurcation of dynamical systems and dangerous boundaries %J Doklady Akademii Nauk %D 1975 %P 1046-1049 %V 224 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1975_224_5_a14/ %G ru %F DAN_1975_224_5_a14