Vikraman Arvind, Jacobo Torán. Sparse Sets, Approximable Sets, and Parallel Queries to NP. Electronic Colloquium on Computational Complexity (ECCC), 5(27), 1998. [doi]
@article{ECCC-TR98-027,
title = {Sparse Sets, Approximable Sets, and Parallel Queries to NP},
author = {Vikraman Arvind and Jacobo Torán},
year = {1998},
doi = {http://eccc.hpi-web.de/eccc-reports/1998/TR98-027/index.html},
researchr = {http://researchr.org/publication/ECCC-TR98-027},
cites = {0},
citedby = {0},
journal = {Electronic Colloquium on Computational Complexity (ECCC)},
volume = {5},
number = {27},
}