TY  - JOUR
AU  - Maria Moszyńska
TI  - Various approaches to the fundamental groups
JO  - Fundamenta Mathematicae
PY  - 1973
SP  - 107
EP  - 118
VL  - 78
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-78-2-107-118/
DO  - 10.4064/fm-78-2-107-118
LA  - en
ID  - 10_4064_fm_78_2_107_118
ER  -