@article{COMIM_2003_11_1_a4,
     author = {K\v{r}{\'\i}\v{z}ek, Michal and Somer, Lawrence},
     title = {17 necessary and sufficient conditions for the primality of {Fermat} numbers},
     journal = {Communications in Mathematics},
     pages = {73--79},
     year = {2003},
     volume = {11},
     number = {1},
     mrnumber = {2037310},
     zbl = {1227.11029},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/COMIM_2003_11_1_a4/}
}