@article{10_4064_sm_73_2_153_167, author = {Burgess Davis}, title = {On the integrability of the ergodic maximal function}, journal = {Studia Mathematica}, pages = {153--167}, publisher = {mathdoc}, volume = {73}, number = {2}, year = {1982}, doi = {10.4064/sm-73-2-153-167}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/sm-73-2-153-167/} }