MARMULLA, Gordana; BRANDES, Ulrik. On Relations between Neighborhoods of Threshold and Ferrers Digraphs. Journal of Graph Algorithms and Applications, [S. l.], v. 30, n. 1, p. 207–235, 2026. DOI: 10.7155/jgaa.v30i1.3099. Disponível em: https://jgaa.info/index.php/jgaa/article/view/3099. Acesso em: 14 jul. 2026.