%0 Journal Article
%A Tzenov, Stephan I.
%T The method of formal series: applications to nonlinear beam dynamics and invariants of motion 
%J Journal of nonlinear sciences and its applications
%D 2025
%P 1-19
%V 18
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.22436/jnsa.018.01.01/
%R 10.22436/jnsa.018.01.01
%G en
%F JNSA_2025_18_1_a0