Chain modular units and explicit unit groups in Ray class fields over imaginary quadratic fields. Gulf Journal of Mathematics, [S. l.], v. 21, n. 1, p. 302–318, 2025. DOI: 10.56947/gjom.v21i1.3334. Disponível em: https://gjom.org/index.php/gjom/article/view/3334. Acesso em: 28 sep. 2026.