%0 Journal Article
%A Zubelevic, Oleg
%T On Periodic Solutions to Constrained Lagrangian System
%J Canadian mathematical bulletin
%D 2020
%P 242-255
%V 63
%N 1
%U http://geodesic.mathdoc.fr/articles/10.4153/S0008439519000456/
%R 10.4153/S0008439519000456
%F 10_4153_S0008439519000456