Betz, Gregor, Andreas Gemsa, Christof Mathies, Ignaz Rutter, and Dorothea Wagner. “Column-Based Graph Layouts”. Journal of Graph Algorithms and Applications 18, no. 5 (December 1, 2014): 677–708. Accessed June 30, 2024. https://jgaa.info/index.php/jgaa/article/view/paper341.