%0 Journal Article
%A M. K. Bugir
%T A connection between the nonvariability of solutions and ill-posed
%J Doklady Akademii Nauk
%D 1991
%P 1053-1056
%V 319
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1991_319_5_a4/
%G ru
%F DAN_1991_319_5_a4