On the Symmetric Block Design with Parameters (210,77,28) Admitting a Frobenius Group of Order 57. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 13, n. 3, p. 608–619, 2020. DOI: 10.29020/nybg.ejpam.v13i3.3769. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/3769.. Acesso em: 2 may. 2024.