Fei Li Lei He Joseph M. Basile Rakesh Patel Hema Ramamurthy High Level Area and Current Estimation. 259-268 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2799&spage=259 2003 conf/patmos/2003 PATMOS db/conf/patmos/patmos2003.html#LiHBPR03