TY  - JOUR
AU  - M. Mangold
TI  - E-varieties of regular semigroups, relatively bifree objects and fully invariant congruences.
JO  - Semigroup forum
PY  - 1995
SP  - 105
EP  - 116
VL  - 50
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1995__50_3_135370/
ID  - SF_1995__50_3_135370
ER  -