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"Approximation preserving reductions for set covering, vertex covering and ..."
Tínaz Ekim, Vangelis Th. Paschos (2004)
- Tínaz Ekim, Vangelis Th. Paschos:
Approximation preserving reductions for set covering, vertex covering and independent set hierarchies under differential approximation. Int. J. Comput. Math. 81(5): 569-582 (2004)
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