 | Fortnow, L. |
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 | Fortnow, L. (L. Fortnow, W. Gasarch, S. Jain, E. Kinber, M. Kummer, S. Kurtz, M. Pleszkoch, T. Slaman, R. Solovay and F. Stephan) -- Extremes in the Degrees of Inferability - 1994 |
 | Fortnow, L. (P. Cholak, R. Downey, L. Fortnow, W. Gasarch, E. Kinber, M. Kummer, S. Kurtz and T. Slaman) -- Degrees of inferability - 1992 |
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