%0 Journal Article
%A L. A. Kogan
%T Vinogradov’s conjecture on the least quadratic nonresidue and representation of numbers by quadratic forms
%J Doklady Akademii Nauk
%D 1971
%P 1263-1264
%V 198
%N 6
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1971_198_6_a2/
%G ru
%F DAN_1971_198_6_a2