%0 Journal Article
%A M. G. Gasymov
%A A. M. Magerramov
%T On the existence of transformation operators for high-order differential equations polynomially depending on a parameter
%J Doklady Akademii Nauk
%D 1977
%P 259-262
%V 235
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1977_235_2_a3/
%G ru
%F DAN_1977_235_2_a3