Harel Paz Erez Petrank David F. Bacon Elliot K. Kolodner V. T. Rajan An Efficient On-the-Fly Cycle Collection. 156-171 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3443&spage=156 2005 conf/cc/2005 CC db/conf/cc/cc2005.html#PazPBKR05