Karakawa, Seigo, Ehab Morsy, and Hiroshi Nagamochi. “Minmax Tree Cover in the Euclidean Space”. Journal of Graph Algorithms and Applications 15, no. 3 (July 1, 2011): 345–371. Accessed March 12, 2025. https://jgaa-v4.cs.brown.edu/index.php/jgaa/article/view/paper230.