TY  - JOUR
AU  - N.R. Reilly
AU  - S. Zhang
TI  - Operators and products in the lattice of existence varieties of regular semigroups.
JO  - Semigroup forum
PY  - 1996
SP  - 1
EP  - 24
VL  - 53
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1996__53_2_135466/
ID  - SF_1996__53_2_135466
ER  -