TY  - JOUR
AU  - Wiesław Żelazko
TI  - On a problem of Fell and Doran
JO  - Colloquium Mathematicum
PY  - 1991
SP  - 31
EP  - 37
VL  - 62
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-62-1-31-37/
DO  - 10.4064/cm-62-1-31-37
LA  - en
ID  - 10_4064_cm_62_1_31_37
ER  -