@article{10_4064_ba61_2_11,
     author = {Adam Os\k{e}kowski},
     title = {Moment {Inequality} for the {Martingale} {Square} {Function}},
     journal = {Bulletin of the Polish Academy of Sciences. Mathematics},
     pages = {169--180},
     publisher = {mathdoc},
     volume = {61},
     number = {2},
     year = {2013},
     doi = {10.4064/ba61-2-11},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/ba61-2-11/}
}