Alireza Zarei, Mohammad Ghodsi. Efficient computation of query point visibility in polygons with holes. In Joseph S. B. Mitchell, Günter Rote, editors, Proceedings of the 21st ACM Symposium on Computational Geometry, Pisa, Italy, June 6-8, 2005. pages 314-320, ACM, 2005. [doi]
Abstract is missing.