@incollection{AST_1988__157-158__75_0,
     author = {Burkholder, Donald L.},
     title = {Sharp inequalities for martingales and stochastic integrals},
     booktitle = {Colloque Paul L\'evy sur les processus stochastiques (22-26 juin 1987. \'Ecole Polytechnique, Palaiseau)},
     series = {Ast\'erisque},
     pages = {75--94},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {157-158},
     year = {1988},
     zbl = {0656.60055},
     language = {en},
     url = {http://archive.numdam.org/item/AST_1988__157-158__75_0/}
}