@incollection{AST_1978__52-53__193_0,
     author = {Chaleyat-Maurel, M. and Yor, Marc},
     title = {Les filtrations de $\left| X \right|$ et $X^+$, lorsque $X$ est une semi-martingale continue},
     booktitle = {Temps locaux},
     series = {Ast\'erisque},
     pages = {193--196},
     publisher = {Soci\'et\'e math\'ematique de France},
     number = {52-53},
     year = {1978},
     language = {fr},
     url = {http://archive.numdam.org/item/AST_1978__52-53__193_0/}
}