Naohiro Hayashibara Xavier Défago Rami Yared Takuya Katayama The F Accrual Failure Detector. 66-78 2004 conf/srds/2004 SRDS http://csdl.computer.org/comp/proceedings/srds/2004/2239/00/22390066abs.htm db/conf/srds/srds2004.html#HayashibaraDYK04