TY  - JOUR
AU  - Thomas Nordahl
TI  - Semigroups satisfying (xy)m = xmym .
JO  - Semigroup forum
PY  - 1974
SP  - 332
EP  - 346
VL  - 8
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1974__8_134051/
ID  - SF_1974__8_134051
ER  -