@article{10_4064_aa_39_1_7_17, author = {H. Williams}, title = {The primality of certain integers of the form $2A r^n - 1$}, journal = {Acta Arithmetica}, pages = {7--17}, publisher = {mathdoc}, volume = {39}, number = {1}, year = {1981}, doi = {10.4064/aa-39-1-7-17}, language = {en}, url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-39-1-7-17/} }