LEPISTÖ, T. On the first factor of the class number of the cyclotomic field and Dirichlet’s L-functions. Annales Fennici Mathematici, [S. l.], n. 387, 1966. DOI: 10.5186/aasfm.1966.387. Disponível em: https://afm.journal.fi/article/view/134063. Acesso em: 26 nov. 2024.