TY  - JOUR
AU  - Mesa, Vilma
TI  - Solving Problems on Functions: Role of the Graphic Calculator.
JO  - PNA
PY  - 2008
SP  - 109
EP  - 135
VL  - 2
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PNA_2008_2008_1_a7/
LA  - en
ID  - PNA_2008_2008_1_a7
ER  -