TY  - JOUR
AU  - J.A. Gerhard
TI  - Injectives in equational classes of  idempotent semigroups.
JO  - Semigroup forum
PY  - 1974
SP  - 36
EP  - 53
VL  - 9
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1974__9_134058/
ID  - SF_1974__9_134058
ER  -