METSÄNKYLA, T. Note on a congruence for $p$-adic $L$-functions. MATHEMATICA SCANDINAVICA, [S. l.], v. 57, p. 225–235, 1985. DOI: 10.7146/math.scand.a-12114. Disponível em: https://www.mscand.dk/article/view/12114. Acesso em: 14 apr. 2025.