%0 Journal Article
%A A. V. Mikhailov
%A A. B. Shabat
%T Integrability conditions for systems of two equations of the form 

%J Teoretičeskaâ i matematičeskaâ fizika
%D 1986
%P 47-65
%V 66
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TMF_1986_66_1_a3/
%G ru
%F TMF_1986_66_1_a3