TY  - JOUR
AU  - Karol Borsuk
TI  - Hopf's extension theorem in the theory of shape
JO  - Colloquium Mathematicum
PY  - 1974
SP  - 211
EP  - 212
VL  - 32
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-32-2-211-212/
DO  - 10.4064/cm-32-2-211-212
LA  - en
ID  - 10_4064_cm_32_2_211_212
ER  -