@article{SPS_1977__11__349_0,
     author = {Cairoli, R. and Walsh, J. B.},
     title = {On changing time},
     journal = {S\'eminaire de probabilit\'es de Strasbourg},
     pages = {349--355},
     publisher = {Springer - Lecture Notes in Mathematics},
     volume = {11},
     year = {1977},
     mrnumber = {517902},
     zbl = {0369.60049},
     language = {en},
     url = {http://archive.numdam.org/item/SPS_1977__11__349_0/}
}