Mark Aagaard Nancy A. Day Robert B. Jones Synchronization-at-Retirement for Pipeline Verification. 113-127 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3312&spage=113 2004 conf/fmcad/2004 FMCAD db/conf/fmcad/fmcad2004.html#AagaardDJ04