%0 Journal Article
%A V. M. Deundyak
%A I. B. Simonenko
%A V. A. Stukopin
%T Homotopic classification of families of Noether singular operators
%J Doklady Akademii Nauk
%D 1993
%P 540-542
%V 329
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1993_329_5_a2/
%G ru
%F DAN_1993_329_5_a2