中国科学院数学与系统科学研究院期刊网
AMS
The Martingale Hardy Type Inequalities for Dyadic Derivative and Integral
Jian Ying NIE, Xing Guo LI, Guo Wei LOU
Acta Mathematica Sinica . 2005, (6): 1465 -1474 .  DOI: 10.1007/s10114-005-0627-0