@article{ author = {David Zuckerman}, title = {Linear Degree Extractors and the Inapproximability of Max Clique and Chromatic Number}, journal = {Theory of Computing}, year = {2007}, volume = {3}, number = {6}, pages = {103-128}, publisher = {Theory of Computing}, eprint = {toc:v003/a006}, URL = {http://www.theoryofcomputing.org/articles/main/v003/a006}, }