HAKAMI, A. H. Primitive zeros of quadratic forms mod $p^2$. Tamkang Journal of Mathematics, [S. l.], v. 46, n. 3, p. 349–364, 2015. DOI: 10.5556/j.tkjm.46.2015.1745. Disponível em: https://journals.math.tku.edu.tw/index.php/TKJM/article/view/1745. Acesso em: 3 oct. 2022.