TY  - JOUR
AU  - I.O. Korjakov
TI  - A sketch of the lattice of commutative nilpotent semigroup varieties.
JO  - Semigroup forum
PY  - 1982
SP  - 285
EP  - 318
VL  - 24
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1982__24_134553/
ID  - SF_1982__24_134553
ER  -