%0 Journal Article %A D. P. Zeragiâ %T On branching of periodic solutions for one autonomous system %J Doklady Akademii Nauk %D 1974 %P 1052-1055 %V 218 %N 5 %I mathdoc %U http://geodesic.mathdoc.fr/item/DAN_1974_218_5_a14/ %G ru %F DAN_1974_218_5_a14