%0 Journal Article
%A N. A. Izobov
%T Cases of sharpening and the attainability of an estimate of the highest exponent in the method of freezing
%J Differencialʹnye uravneniâ
%D 1971
%P 1179-1191
%V 7
%N 7
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DE_1971_7_7_a3/
%G ru
%F DE_1971_7_7_a3