Alexander A. Razborov, Alexander A. Sherstov. The Sign-Rank of AC^0. Electronic Colloquium on Computational Complexity (ECCC), 15(016), 2008. [doi]
@article{RazborovS08,
title = {The Sign-Rank of AC^0},
author = {Alexander A. Razborov and Alexander A. Sherstov},
year = {2008},
url = {http://eccc.hpi-web.de/eccc-reports/2008/TR08-016/index.html},
researchr = {https://researchr.org/publication/RazborovS08},
cites = {0},
citedby = {0},
journal = {Electronic Colloquium on Computational Complexity (ECCC)},
volume = {15},
number = {016},
}