TY  - JOUR
AU  - H. Kaufmann 
TI  - Dynamic Differential Geometry in Education
JO  - Journal for geometry and graphics
PY  - 2009
SP  - 241
EP  - 254
VL  - 13
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/JGG_2009_13_2_JGG_2009_13_2_a9/
ID  - JGG_2009_13_2_JGG_2009_13_2_a9
ER  -