TY  - JOUR
AU  - Stephenson, R. M.
TI  - Two R-Closed Spaces
JO  - Canadian journal of mathematics
PY  - 1972
SP  - 286
EP  - 292
VL  - 24
IS  - 2
UR  - http://geodesic.mathdoc.fr/articles/10.4153/CJM-1972-023-5/
DO  - 10.4153/CJM-1972-023-5
ID  - 10_4153_CJM_1972_023_5
ER  -