TY  - JOUR
AU  - M. Fort
TI  - Extension of the set on which mappings into Sn are homotopic
JO  - Fundamenta Mathematicae
PY  - 1959
SP  - 271
EP  - 276
VL  - 48
IS  - 3
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/fm-48-3-271-276/
DO  - 10.4064/fm-48-3-271-276
LA  - en
ID  - 10_4064_fm_48_3_271_276
ER  -