TY  - JOUR
AU  - A. Ustilovskaya
TI  - Principles of Thinking and Activities Theory Applied to a School Course of Geometry
JO  - Matematičeskoe obrazovanie
PY  - 2006
SP  - 69
EP  - 79
IS  - 1
UR  - http://geodesic.mathdoc.fr/item/MO_2006_1_a4/
LA  - ru
ID  - MO_2006_1_a4
ER  -