%0 Journal Article
%A K. Pohlmeyer
%T Higher order perturbation theory of exponential Lagrangians: fourth order
%J Informatics and Automation
%D 1975
%P 201-205
%V 135
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TRSPY_1975_135_a22/
%G en
%F TRSPY_1975_135_a22