Biedl, Therese. “1-Bend 3-D Orthogonal Box-Drawings: Two Open Problems Solved”. Journal of Graph Algorithms and Applications 5, no. 3 (January 1, 2001): 1–15. Accessed January 22, 2026. https://jgaa-v5.cs.brown.edu/index.php/jgaa/article/view/paper34.