@incollection{AST_1978__52-53__219_0,
     author = {Yor, Marc},
     title = {Un exemple de processus qui n'est pas une semi-martingale},
     booktitle = {Temps locaux},
     series = {Ast\'erisque},
     pages = {219--221},
     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__219_0/}
}