TY  - JOUR
AU  - J. A. Gerhard
TI  - Semigroups with idempotent powers, II: The lattices of equational subclasses of  [(xy2 =xy] .
JO  - Semigroup forum
PY  - 1977
SP  - 375
EP  - 388
VL  - 14
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1977__14_186378/
ID  - SF_1977__14_186378
ER  -