Soulignac, Francisco. “Bounded, Minimal, and Short Representations of Unit Interval and Unit Circular-Arc Graphs. Chapter I: Theory”. Journal of Graph Algorithms and Applications 21, no. 4 (February 1, 2017): 455–489. Accessed May 1, 2025. https://www.jgaa.info/index.php/jgaa/article/view/paper425.