@article{1077490947, author = {Doob, J. L.}, title = {One-parameter families of transformations}, journal = {Duke Math. J.}, volume = {4}, number = {1}, year = {1938}, pages = { 752-774}, language = {en}, url = {http://dml.mathdoc.fr/item/1077490947} }
Doob, J. L. One-parameter families of transformations. Duke Math. J., Tome 4 (1938) no. 1, pp. 752-774. http://gdmltest.u-ga.fr/item/1077490947/