%0 Journal Article
%A Levent Akgün
%A M. Emin Özdemir
%T Students' understanding of the variable as general number and unknown: a case study
%J The Teaching of Mathematics
%D 2006
%P 45 
%V IX
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/TM2_2006_IX_1_a4/
%G en
%F TM2_2006_IX_1_a4