(Optional)
Leslie Lamport, Robert E. Shostak, Marshall C. Pease. The Byzantine Generals Problem. ACM Trans. Program. Lang. Syst. 4(3), 1982.
Miguel Castro and Barbara Liskov. Practical Byzantine Fault Tolerance. OSDI 1999.
Sisi Duan, Hein Meling, Sean Peisert, and Haibin Zhang. BChain: Byzantine Replication with High Throughput and Embedded Reconfiguration. OPODIS 2014.