@article{10_2307_2661383,
     author = {Alexandru D. Ionescu},
     title = {An endpoint estimate for the {Kunze-Stein} phenomenon and related maximal operators},
     journal = {Annals of mathematics},
     year = {2000},
     volume = {152},
     number = {1},
     doi = {10.2307/2661383},
     zbl = {0970.43002},
     url = {http://geodesic.mathdoc.fr/articles/10.2307/2661383/}
}