@article{10_21136_MB_2001_134197,
     author = {K\v{r}{\'\i}\v{z}ek, Michal and Somer, Lawrence},
     title = {A necessary and sufficient condition for the primality of {Fermat} numbers},
     journal = {Mathematica Bohemica},
     pages = {541--549},
     publisher = {mathdoc},
     volume = {126},
     number = {3},
     year = {2001},
     doi = {10.21136/MB.2001.134197},
     mrnumber = {1970256},
     zbl = {0993.11002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.21136/MB.2001.134197/}
}