Xiaomin Chen, János Pach, Mario Szegedy, Gábor Tardos. Delaunay graphs of point sets in the plane with respect to axis-parallel rectangles. In Shang-Hua Teng, editor, Proceedings of the Nineteenth Annual ACM-SIAM Symposium on Discrete Algorithms, SODA 2008, San Francisco, California, USA, January 20-22, 2008. pages 94-101, SIAM, 2008. [doi]
Abstract is missing.