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"On the Structure of Sets in NP and Other Complexity Classes."
Lawrence H. Landweber, Richard J. Lipton, Edward L. Robertson (1981)
- Lawrence H. Landweber, Richard J. Lipton, Edward L. Robertson:
On the Structure of Sets in NP and Other Complexity Classes. Theor. Comput. Sci. 15: 181-200 (1981)
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