TY  - JOUR
AU  - Šeda, Valter
TI  - Surjectivity of an operator
JO  - Czechoslovak Mathematical Journal
PY  - 1990
SP  - 46
EP  - 63
VL  - 40
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.21136/CMJ.1990.102358/
DO  - 10.21136/CMJ.1990.102358
LA  - en
ID  - 10_21136_CMJ_1990_102358
ER  -