Oded Goldreich Michael Krivelevich Ilan Newman Eyal Rozenberg Hierarchy Theorems for Property Testing. 2008 15 Electronic Colloquium on Computational Complexity (ECCC) http://eccc.hpi-web.de/eccc-reports/2008/TR08-097/index.html 097 db/journals/eccc/eccc15.html#GoldreichKNR08