EPPSTEIN, David; SIMONS, Joseph. Confluent Hasse Diagrams. Journal of Graph Algorithms and Applications, [S. l.], v. 17, n. 7, p. 689–710, 2013. DOI: 10.7155/jgaa.00312. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper312. Acesso em: 22 dec. 2024.