TY  - JOUR
AU  - Plewik, Szymon
TI  - On closed mappings
JO  - Czechoslovak Mathematical Journal
PY  - 1988
SP  - 313
EP  - 318
VL  - 38
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1988.102226/
DO  - 10.21136/CMJ.1988.102226
LA  - en
ID  - 10_21136_CMJ_1988_102226
ER  -