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A Prototype System for Light Propagation in Terrains
(1998)Proceedings Computer Graphics International 1998Conference Paper -
Inapproximability of Some Art Gallery Problems
(1998)Proceedings of the 10th Canadian Conference on Computational GeometryConference Paper -
Positioning Guards at Fixed Height Above a Terrain − an Optimum Inapproximability Result
(1998)Lecture Notes in Computer Science ~ Algorithms − ESA ’98Conference Paper