@article{JRAM_1975__0278_0279_151639,
     author = {N. Robbins},
     title = {Lower bounds for the largest prime factor of an odd perfect number which is divisible by a {Fermat} prime.},
     journal = {Journal f\"ur die reine und angewandte Mathematik},
     pages = {14--21},
     publisher = {mathdoc},
     volume = {0278_0279},
     year = {1975},
     zbl = {0311.10008},
     url = {http://geodesic.mathdoc.fr/item/JRAM_1975__0278_0279_151639/}
}