TY - JOUR AU - Adam Os/ekowski TI - Weak Type Inequality for the Square Function of a Nonnegative Submartingale JO - Bulletin of the Polish Academy of Sciences. Mathematics PY - 2009 SP - 81 EP - 89 VL - 57 IS - 1 PB - mathdoc UR - http://geodesic.mathdoc.fr/articles/10.4064/ba57-1-9/ DO - 10.4064/ba57-1-9 LA - en ID - 10_4064_ba57_1_9 ER -