%0 Journal Article
%A P. M. Akhmet'ev
%T Quadratic helicities and the energy of magnetic fields
%J Trudy Matematicheskogo Instituta imeni V.A. Steklova
%D 2012
%P 16-28
%V 278
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM_2012_278_a1/
%G ru
%F TM_2012_278_a1