TY  - JOUR
AU  - J. Kurzweil
TI  - On approximation in real Banach spaces by analytic operations
JO  - Studia Mathematica
PY  - 1957
SP  - 124
EP  - 129
VL  - 16
IS  - 2
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/sm-16-2-124-129/
DO  - 10.4064/sm-16-2-124-129
LA  - en
ID  - 10_4064_sm_16_2_124_129
ER  -