Badent, Melanie, Ulrik Brandes, and Sabine Cornelsen. “More Canonical Ordering”. Journal of Graph Algorithms and Applications 15, no. 1 (February 1, 2011): 97–126. Accessed December 7, 2025. https://jgaa-v5.cs.brown.edu/index.php/jgaa/article/view/paper219.