@article{10_4064_fm183_1_5,
     author = {Paul Alton Hagelstein},
     title = {On the uniqueness of the uncentered
 ergodic maximal function},
     journal = {Fundamenta Mathematicae},
     pages = {81--90},
     publisher = {mathdoc},
     volume = {183},
     number = {1},
     year = {2004},
     doi = {10.4064/fm183-1-5},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/fm183-1-5/}
}