%0 Journal Article
%A V. P. Babii
%T The computation of the subharmonics of nonautonomous systems
%J Izvestiâ vysših učebnyh zavedenij. Matematika
%D 1976
%P 13-17
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/IVM_1976_3_a1/
%G ru
%F IVM_1976_3_a1