TY  - JOUR
AU  - Al. A. Privalov
TI  - On some properties and criterions of a parallelogram
JO  - Matematičeskoe obrazovanie
PY  - 2020
SP  - 36
EP  - 45
VL  - 93
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/MO_2020_93_1_a4/
LA  - ru
ID  - MO_2020_93_1_a4
ER  -