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"Positioning Guards at Fixed Height Above a Terrain - An Optimum ..."
Stephan J. Eidenbenz, Christoph Stamm, Peter Widmayer (1998)
- Stephan J. Eidenbenz, Christoph Stamm, Peter Widmayer:
Positioning Guards at Fixed Height Above a Terrain - An Optimum Inapproximability Result. ESA 1998: 187-198
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