Bar-Yehuda, Reuven, and Irad Yavneh. “A Factor-Two Approximation Algorithm for Two-Dimensional Phase Unwrapping”. Journal of Graph Algorithms and Applications 10, no. 2 (January 1, 2006): 123–139. Accessed May 23, 2025. https://www.jgaa.info/index.php/jgaa/article/view/paper121.