TY  - JOUR
AU  - V. S. Bogomolov
AU  - T. G. Mustafin
TI  - Description of commutative monoids over which all polygons are
JO  - Algebra i logika
PY  - 1989
SP  - 371
EP  - 381
VL  - 28
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/AL_1989_28_4_a0/
LA  - ru
ID  - AL_1989_28_4_a0
ER  -