Oded GoldreichShafi GoldwasserDana Ron Property Testing and its connection to Learning and Approximation Electronic Colloquium on Computational Complexity (ECCC) 1996 57 3 db/journals/eccc/eccc3.html#ECCC-TR96-057 http://eccc.hpi-web.de/eccc-reports/1996/TR96-057/index.html