Dieter van Melkebeek, Mitsunori Ogihara. Sparse Hard Sets for P. In Advances in Algorithms, Languages, and Complexity. pages 191-208, 1997.
@inproceedings{MelkebeekO97, title = {Sparse Hard Sets for P}, author = {Dieter van Melkebeek and Mitsunori Ogihara}, year = {1997}, researchr = {https://researchr.org/publication/MelkebeekO97}, cites = {0}, citedby = {0}, pages = {191-208}, booktitle = {Advances in Algorithms, Languages, and Complexity}, }