TY  - JOUR
AU  - V. M. Imaykin
TI  - On notions of length, square, and volume for high school
JO  - Matematičeskoe obrazovanie
PY  - 2014
SP  - 16
EP  - 28
IS  - 4
UR  - http://geodesic.mathdoc.fr/item/MO_2014_4_a4/
LA  - ru
ID  - MO_2014_4_a4
ER  -