Dehkordi, Hooman, and Graham Farr. “Thrackles, Superthrackles and the Hanani-Tutte Theorem”. Journal of Graph Algorithms and Applications 28, no. 1 (May 16, 2024): 95–127. Accessed December 21, 2024. https://jgaa.info/index.php/jgaa/article/view/2930.