TY  - JOUR
AU  - T. Jakubowski
TI  - Groups acting on covering spaces
JO  - Colloquium Mathematicum
PY  - 1980
SP  - 81
EP  - 89
VL  - 43
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-43-1-81-89/
DO  - 10.4064/cm-43-1-81-89
LA  - en
ID  - 10_4064_cm_43_1_81_89
ER  -