Alysson Neves Bessani Eduardo Adílio Pelinson Alchieri Miguel Correia Joni da Silva Fraga DepSpace: a byzantine fault-tolerant coordination service. 163-176 2008 EuroSys http://doi.acm.org/10.1145/1352592.1352610 conf/eurosys/2008 db/conf/eurosys/eurosys2008.html#BessaniACF08