@article{SPS_1981__15__251_0,
     author = {Pitman, Jim},
     title = {A note on $L_2$ maximal inequalities},
     journal = {S\'eminaire de probabilit\'es de Strasbourg},
     pages = {251--258},
     publisher = {Springer - Lecture Notes in Mathematics},
     volume = {15},
     year = {1981},
     mrnumber = {622567},
     zbl = {0481.60050},
     language = {en},
     url = {http://www.numdam.org/item/SPS_1981__15__251_0/}
}