%0 Journal Article
%A D. Kusar 
%T Eleven Years of Testing Spatial Visualization Skills
%J Journal for geometry and graphics
%D 2012
%P 235-246
%V 16
%N 2
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2012_16_2_JGG_2012_16_2_a9/
%F JGG_2012_16_2_JGG_2012_16_2_a9