%0 Journal Article %A Leo Murata %T The distribution of primes satisfying the condition $a^{p-1} ≡ 1 (mod p^{2})$ %J Acta Arithmetica %D 1991 %P 103-111 %V 58 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/aa-58-2-103-111/ %R 10.4064/aa-58-2-103-111 %G en %F 10_4064_aa_58_2_103_111