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"Asymmetric k-center is log* n-hard to approximate."
Julia Chuzhoy et al. (2005)
- Julia Chuzhoy, Sudipto Guha, Eran Halperin, Sanjeev Khanna, Guy Kortsarz, Robert Krauthgamer, Joseph Naor:
Asymmetric k-center is log* n-hard to approximate. J. ACM 52(4): 538-551 (2005)
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