%0 Journal Article
%A V. V. Amel'kin
%A V. È. Zhavnerchik
%T The existence of several periodic solutions to equations of Li\'enard type
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1987
%P 3-5
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1987_3_a0/
%G ru
%F IVM_1987_3_a0