%0 Journal Article
%A Vladimir Janković
%T Quadratic functions in several variables
%J The Teaching of Mathematics
%D 2005
%P 53 
%V VIII
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM2_2005_VIII_2_a0/
%G en
%F TM2_2005_VIII_2_a0