TY  - JOUR
AU  - Hammer, Preston C.
TI  - Extended topology: connected sets and Wallace separations
JO  - Portugaliae mathematica
PY  - 1963
SP  - 167
EP  - 187
VL  - 22
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/PORMA_1963__22_4_114906/
LA  - en
ID  - PORMA_1963__22_4_114906
ER  -