Dakshi Agrawal Josyula R. Rao Pankaj Rohatgi 2-16 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2779&spage=2 2003 conf/ches/2003 CHES db/conf/ches/ches2003.html#AgrawalRR03