%0 Journal Article %A V. S. Afraimovich %A L. P. Shilnikov %T On a bifurcation of codimension~$1$ leading to the appearance of a countable set of tori %J Doklady Akademii Nauk %D 1982 %P 777-780 %V 262 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1982_262_4_a0/ %G ru %F DAN_1982_262_4_a0