GRAS, Georges. Notion of abelian arithmetic ϕ-objects for the study of p-class groups and p-ramified torsion groups. North-Western European Journal of Mathematics, [S. l.], n. 9, p. 109–199, 2023. Disponível em: https://nwejm.univ-lille.fr/index.php/nwejm/article/view/71.. Acesso em: 18 oct. 2024.