%0 Journal Article
%A V. G. Marikhin
%T Action as an~invariant of B\"acklund transformations for Lagrangian systems
%J Teoretičeskaâ i matematičeskaâ fizika
%D 2015
%P 71-78
%V 184
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_2015_184_1_a3/
%G ru
%F TMF_2015_184_1_a3