TY  - JOUR
AU  - A. N. Afanasyev
TI  - Trigonometry and problem solving in geometry
JO  - Matematičeskoe obrazovanie
PY  - 2022
SP  - 12
EP  - 20
VL  - 101
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MO_2022_101_1_a2/
LA  - ru
ID  - MO_2022_101_1_a2
ER  -