Gennaro Cordasco Alberto Negro Vittorio Scarano Arnold L. Rosenberg c-Perfect Hashing Schemes for Binary Trees, with Applications to Parallel Memories. 911-916 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2790&spage=911 2003 conf/europar/2003 Euro-Par db/conf/europar/europar2003.html#CordascoNSR03