TY  - JOUR
AU  - C.J. Ash
TI  - A uniform chain whose inverse semigroup has no chart.
JO  - Semigroup forum
PY  - 1979
SP  - 1
EP  - 4
VL  - 18
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/SF_1979__18_134334/
ID  - SF_1979__18_134334
ER  -