%0 Journal Article
%A V. A. Malyshev
%T Differential inequalities and the Hadamard conjecture
%J Doklady Akademii Nauk
%D 1992
%P 420-422
%V 323
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/item/DAN_1992_323_3_a9/
%G ru
%F DAN_1992_323_3_a9