%0 Journal Article
%A P. P. Tammela
%T On the theory of the reduction of positive quadratic forms. Abnormality of the partition of the positivity cone into the Minkowski $(n\geqslant7)$ and Barns--Cohn reduction regions $(n=4)$.
%J Zapiski Nauchnykh Seminarov POMI
%D 1986
%P 125-134
%V 151
%I mathdoc
%U http://geodesic.mathdoc.fr/item/ZNSL_1986_151_a12/
%G ru
%F ZNSL_1986_151_a12