@article{PMIHES_1989__69__5_0,
author = {Bourgain, Jean},
title = {Pointwise ergodic theorems for arithmetic sets},
journal = {Publications Math\'ematiques de l'IH\'ES},
volume = {70},
year = {1989},
pages = {5-41},
mrnumber = {90k:28030},
zbl = {0705.28008},
language = {en},
url = {http://dml.mathdoc.fr/item/PMIHES_1989__69__5_0}
}
Bourgain, Jean. Pointwise ergodic theorems for arithmetic sets. Publications Mathématiques de l'IHÉS, Tome 70 (1989) pp. 5-41. http://gdmltest.u-ga.fr/item/PMIHES_1989__69__5_0/