TY  - JOUR
AU  - R. W. West
TI  - Covering spaces revisited
JO  - Commentationes Mathematicae
PY  - 1971
SP  -  119
EP  - 126
VL  - 15
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.14708/cm.v15i1.5710/
DO  - 10.14708/cm.v15i1.5710
LA  - pl
ID  - 10_14708_cm_v15i1_5710
ER  -