%0 Journal Article
%A R. B. Statnikov
%A Yu. Yu. Uzvolok
%T The determination of the boundaries of variation of parameters in
%J Doklady Akademii Nauk
%D 1990
%P 1057-1061
%V 315
%N 5
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1990_315_5_a6/
%G ru
%F DAN_1990_315_5_a6