@article{CMH_1962__37_139258,
     author = {John Lamperti and Adriano Garsia},
     title = {A {Discrete} {Renewal} {Theorem} with {Infinite} {Mean.}},
     journal = {Commentarii mathematici Helvetici},
     pages = {221--234},
     publisher = {mathdoc},
     volume = {37},
     year = {1962},
     zbl = {0114.08803},
     url = {http://geodesic.mathdoc.fr/item/CMH_1962__37_139258/}
}