%0 Journal Article
%A G. Maresch 
%T How to Develop Spatial Ability? Factors, Strategies, and Gender Specific Findings
%J Journal for geometry and graphics
%D 2015
%P 133-157
%V 19
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/JGG_2015_19_1_JGG_2015_19_1_a9/
%F JGG_2015_19_1_JGG_2015_19_1_a9