TY  - JOUR
AU  - S. A. Sorby
AU  - T. Drummer
AU  - R. Molzon 
TI  - Experiences in Using Spatial Skills Testing Instruments with Younger Audiences
JO  - Journal for geometry and graphics
PY  - 2006
SP  - 227
EP  - 235
VL  - 10
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2006_10_2_JGG_2006_10_2_a10/
ID  - JGG_2006_10_2_JGG_2006_10_2_a10
ER  -