TY  - JOUR
AU  - A.H. Clifford
TI  - The structure of orthodox unions of groups.
JO  - Semigroup forum
PY  - 1971
SP  - 283
EP  - 337
VL  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1971__3_133869/
ID  - SF_1971__3_133869
ER  -