@article{GDZPPN002087448, title = {A Local Ergodic Theorem.}, journal = {Inventiones mathematicae}, volume = {5}, year = {1968}, pages = {329-333}, zbl = {0165.37402}, url = {http://dml.mathdoc.fr/item/GDZPPN002087448} }
KRENGEL, U. A Local Ergodic Theorem.. Inventiones mathematicae, Tome 5 (1968) pp. 329-333. http://gdmltest.u-ga.fr/item/GDZPPN002087448/