DI BATTISTA, Giuseppe; SQUARCELLA, Claudio; NAGELE, Wolfgang. How to Visualize the K-root Name Server. Journal of Graph Algorithms and Applications, [S. l.], v. 16, n. 3, p. 675–699, 2012. DOI: 10.7155/jgaa.00267. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper267. Acesso em: 30 jun. 2024.