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Greg Aloupis, Prosenjit Bose, Erik D. Demaine, Stefan Langerman, Henk Meijer, Mark H. Overmars, Godfried T. Toussaint. Computing Signed Permutations of Polygons. Int. J. Comput. Geometry Appl., 21(1):87-100, 2011. [doi]
Abstract is missing.