Construction and Classification of Generalized Hadamard Codes over Gaussian Integer Rings $\mathbb{Z}_{3^s}[i]$. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 19, n. 2, p. 7682, 2026. DOI: 10.29020/nybg.ejpam.v19i2.7682. Disponível em: https://www.ejpam.com/ejpam/article/view/7682. Acesso em: 28 jul. 2026.