π/2-Angle Yao Graphs are Spanners

Prosenjit Bose, Mirela Damian, Karim Douïeb, Joseph O'Rourke, Ben Seamone, Michiel H. M. Smid, Stefanie Wuhrer. π/2-Angle Yao Graphs are Spanners. Int. J. Comput. Geometry Appl., 22(1):61-82, 2012. [doi]

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