Bose, Prosenjit, Jean-Lou De Carufel, Alina Shaikhet, and Michiel Smid. “Essential Constraints of Edge-Constrained Proximity Graphs”. Journal of Graph Algorithms and Applications 21, no. 4 (February 1, 2017): 389–415. Accessed September 27, 2024. https://jgaa.info/index.php/jgaa/article/view/paper422.