TY  - JOUR
AU  - Al. A. Privalov
TI  - On some properties and criterions of a parallelogram, finished
JO  - Matematičeskoe obrazovanie
PY  - 2020
SP  - 35
EP  - 41
VL  - 94
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MO_2020_94_2_a4/
LA  - ru
ID  - MO_2020_94_2_a4
ER  -