TY  - JOUR
AU  - T. Nordahl
TI  - Residual finiteness in permutation varieties of semigroups.
JO  - Semigroup forum
PY  - 1985
SP  - 33
EP  - 46
VL  - 31
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1985__31_134735/
ID  - SF_1985__31_134735
ER  -