TY  - JOUR
AU  - S. Bulman-Fleming
AU  - K. McDowell
TI  - Flatness in varieties of normal bands.
JO  - Semigroup forum
PY  - 1980
SP  - 139
EP  - 150
VL  - 19
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1980__19_134379/
ID  - SF_1980__19_134379
ER  -