%0 Journal Article
%A V. P. Kazantsev
%T Variational principle, characteristic electric multipoles, and higher polarizing moments in field theory
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1999
%P 441-454
%V 119
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1999_119_3_a7/
%G ru
%F TMF_1999_119_3_a7