TY  - JOUR
AU  - N.R. Reilly
AU  - J. Almeida
TI  - Generalized varieties of commutative and nilpotent semigroups.
JO  - Semigroup forum
PY  - 1984
SP  - 77
EP  - 98
VL  - 30
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1984__30_134706/
ID  - SF_1984__30_134706
ER  -