TY  - JOUR
AU  - A. V. Gladkii
TI  - On Definitions of a Length of a Circumference and an Area of a Circle
JO  - Matematičeskoe obrazovanie
PY  - 2000
SP  - 41
EP  - 50
VL  - 15
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MO_2000_15_4_a3/
LA  - ru
ID  - MO_2000_15_4_a3
ER  -