TY  - JOUR
AU  - Y. Zalcstein
TI  - Locally testable semigroups.
JO  - Semigroup forum
PY  - 1972
SP  - 216
EP  - 227
VL  - 5
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1972__5_133940/
ID  - SF_1972__5_133940
ER  -