TY  - JOUR
AU  - R. Cacioppo
TI  - Nonfinitely based pseudovarieties and inherently nonfinitely based varieties.
JO  - Semigroup forum
PY  - 1993
SP  - 223
EP  - 226
VL  - 47
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1993__47_2_135272/
ID  - SF_1993__47_2_135272
ER  -