WOOD, David. Lower Bounds for the Number of Bends in Three-Dimensional Orthogonal Graph Drawings. Journal of Graph Algorithms and Applications, [S. l.], v. 7, n. 1, p. 33–77, 2003. DOI: 10.7155/jgaa.00060. Disponível em: https://jgaa.info/index.php/jgaa/article/view/paper60. Acesso em: 25 dec. 2024.