Takashi Sato Hiroyuki Ueyama Noriaki Nakayama Kazuya Masu Determination of optimal polynomial regression function to decompose on-die systematic and random variations. 518-523 2008 ASP-DAC http://dx.doi.org/10.1109/ASPDAC.2008.4484006 conf/aspdac/2008 db/conf/aspdac/aspdac2008.html#SatoUNM08