%0 Journal Article
%A M. V. Shamolin
%T Families of portraits of some pendulum-like systems in dynamics
%J Sibirskij žurnal industrialʹnoj matematiki
%D 2020
%P 144-156
%V 23
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/SJIM_2020_23_4_a10/
%G ru
%F SJIM_2020_23_4_a10