Gima, Tatsuya, Yasuaki Kobayashi, and Yuto Okada. “Structural Parameterizations of $k$-Planarity”. Journal of Graph Algorithms and Applications 30, no. 1 (June 26, 2026): 273–294. Accessed July 19, 2026. https://jgaa-v5.cs.brown.edu/index.php/jgaa/article/view/3095.