%0 Journal Article
%A E. Tsutsumi
%A H.-P. Schroecker
%A H. Stachel
%A G. Weiss 
%T Evaluation of Students' Spatial Abilities in Austria and Germany
%J Journal for geometry and graphics
%D 2005
%P 107-117
%V 9
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2005_9_1_JGG_2005_9_1_a10/
%F JGG_2005_9_1_JGG_2005_9_1_a10