TY  - JOUR
AU  - Adam Osękowski
TI  - Two Inequalities for the First Moments of a
Martingale, its Square Function
 and its Maximal Function
JO  - Bulletin of the Polish Academy of Sciences. Mathematics
PY  - 2005
SP  - 441
EP  - 449
VL  - 53
IS  - 4
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/articles/10.4064/ba53-4-9/
DO  - 10.4064/ba53-4-9
LA  - en
ID  - 10_4064_ba53_4_9
ER  -