@article{10_4153_CJM_1986_045_9,
     author = {McCurley, Kevin S.},
     title = {The smallest {Prime} {Value} of xn + a},
     journal = {Canadian journal of mathematics},
     pages = {925--936},
     year = {1986},
     volume = {38},
     number = {4},
     doi = {10.4153/CJM-1986-045-9},
     url = {http://geodesic.mathdoc.fr/articles/10.4153/CJM-1986-045-9/}
}