@incollection{AST_1978__52-53__89_0, author = {Walsh, John B.}, title = {Downcrossings and the {Markov} propert of local time}, booktitle = {Temps locaux}, series = {Ast\'erisque}, pages = {89--115}, publisher = {Soci\'et\'e math\'ematique de France}, number = {52-53}, year = {1978}, language = {en}, url = {http://archive.numdam.org/item/AST_1978__52-53__89_0/} }