%0 Journal Article
%A Oana Constantinescu
%T Formal integrability for the nonautonomous case of the inverse problem of the calculus of variations
%J Symmetry, integrability and geometry: methods and applications
%D 2012
%V 8
%U http://geodesic.mathdoc.fr/item/SIGMA_2012_8_a58/
%G en
%F SIGMA_2012_8_a58