@article{SPS_1970__4__37_0,
     author = {Chersi, Franco},
     title = {Martingales et int\'egrabilit\'e de $X\log ^+X$ d{\textquoteright}apr\`es {Gundy}},
     journal = {S\'eminaire de probabilit\'es de Strasbourg},
     pages = {37--46},
     publisher = {Springer - Lecture Notes in Mathematics},
     volume = {4},
     year = {1970},
     zbl = {0201.19401},
     language = {fr},
     url = {http://www.numdam.org/item/SPS_1970__4__37_0/}
}