Shuichi Sakai Masahiro Goshima Hidetsugu Irie Ultra Dependable Processor. 1386-1393 2008 91-C IEICE Transactions 9 http://dx.doi.org/10.1093/ietele/e91-c.9.1386 db/journals/ieicet/ieicet91c.html#SakaiGI08