@article{10_4153_CJM_1976_040_8,
     author = {Mucci, A. G.},
     title = {Ratio {Limit} {Theorems}},
     journal = {Canadian journal of mathematics},
     pages = {403--407},
     year = {1976},
     volume = {28},
     number = {2},
     doi = {10.4153/CJM-1976-040-8},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1976-040-8/}
}