@article{10_4064_cm132_1_2,
     author = {Masato Kikuchi},
     title = {On a relation between norms of
 the maximal function and
 the square function of a martingale},
     journal = {Colloquium Mathematicum},
     pages = {13--26},
     publisher = {mathdoc},
     volume = {132},
     number = {1},
     year = {2013},
     doi = {10.4064/cm132-1-2},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/cm132-1-2/}
}