The following publications are possibly variants of this publication:
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- Computation of Voronoi Diagram of Planar Freeform Closed Convex Curves Using Touching DiscsBharath Ram Sundar, Ramanathan Muthuganapathy. cadgraphics 2013: 361-368 [doi]
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- Robust arrangements and Voronoi diagrams of free-form curves and surfacesIddo Hanniel. PhD thesis, Technion - Israel Institute of Technology, Israel, 2007. [doi]