On Plick Graphs with Point-outercoarseness Number One. European Journal of Pure and Applied Mathematics, Maryland, USA, v. 13, n. 5, p. 1300–1305, 2020. DOI: 10.29020/nybg.ejpam.v13i5.3716. Disponível em: https://www.ejpam.com/index.php/ejpam/article/view/3716.. Acesso em: 4 may. 2024.