TY  - JOUR
AU  - A. Ruzyczka
TI  - Spatial Imagination Among Students Commencing the Course of Descriptive Geometry at Technical Studies
JO  - Journal for geometry and graphics
PY  - 2003
SP  - 247
EP  - 252
VL  - 7
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2003_7_2_JGG_2003_7_2_a10/
ID  - JGG_2003_7_2_JGG_2003_7_2_a10
ER  -