%0 Journal Article
%A A. N. Leznov
%T Equivalence of four-dimensional self-duality equations and the continuum analog of the principal chiral field problem
%J Teoretičeskaâ i matematičeskaâ fizika
%D 1987
%P 302-307
%V 73
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1987_73_2_a12/
%G ru
%F TMF_1987_73_2_a12