%0 Journal Article
%A J.M. Cushing
%T Extremal Tests for Scalar Functions of Several Real variables at Degenerate Critical Points. (Short Communication).
%J Aequationes mathematicae
%D 1975
%P 109-110
%V 12
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AM2_1975__12_136488/
%F AM2_1975__12_136488