Hong, Seok-Hee, and Hiroshi Nagamochi. “New Approximation to the One-Sided Radial Crossing Minimization”. Journal of Graph Algorithms and Applications 13, no. 2 (February 1, 2009): 179–196. Accessed May 1, 2025. https://www.jgaa.info/index.php/jgaa/article/view/paper182.