@article{10_4064_aa_58_2_103_111,
     author = {Leo Murata},
     title = {The distribution of primes satisfying the condition $a^{p-1} \ensuremath{\equiv} 1 (mod p^{2})$},
     journal = {Acta Arithmetica},
     pages = {103--111},
     publisher = {mathdoc},
     volume = {58},
     number = {2},
     year = {1991},
     doi = {10.4064/aa-58-2-103-111},
     language = {en},
     url = {http://geodesic.mathdoc.fr/articles/10.4064/aa-58-2-103-111/}
}