%0 Journal Article
%A Jan Hendrik Müller
%T Exploring Number-pyramids in the Secondary Schools
%J The Teaching of Mathematics
%D 2003
%P 37 
%V VI
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM2_2003_VI_1_a2/
%G en
%F TM2_2003_VI_1_a2