@article{10_4064_aa_41_2_141_150,
     author = {Samuel Wagstaff},
     title = {Pseudoprimes and a generalization of {Artin's} conjecture},
     journal = {Acta Arithmetica},
     pages = {141--150},
     publisher = {mathdoc},
     volume = {41},
     number = {2},
     year = {1982},
     doi = {10.4064/aa-41-2-141-150},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-41-2-141-150/}
}