Arge, Lars, Ulrich Meyer, Laura Toma, and Norbert Zeh. “On External-Memory Planar Depth First Search”. Journal of Graph Algorithms and Applications 7, no. 2 (January 1, 2003): 105–129. Accessed December 26, 2024. https://jgaa.info/index.php/jgaa/article/view/paper63.