TY  - JOUR
AU  - Henry Helson
TI  - On a problem of Sikorski
JO  - Colloquium Mathematicum
PY  - 1949
SP  - 7
EP  - 8
VL  - 2
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/cm-2-1-7-8/
DO  - 10.4064/cm-2-1-7-8
LA  - pl
ID  - 10_4064_cm_2_1_7_8
ER  -