TY  - JOUR
AU  - D. V. Solomatin
TI  - The ranks of planarity for~varieties~of~commutative~semigroups
JO  - Prikladnaâ diskretnaâ matematika
PY  - 2016
SP  - 50
EP  - 64
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PDM_2016_4_a3/
LA  - ru
ID  - PDM_2016_4_a3
ER  -