兩軍
http://stackoverflow.com/questions/8368388/two-generals-agreement
http://bravenewgeek.com/tag/two-generals-problem/
https://en.wikipedia.org/wiki/Two_Generals'_Problem
拜占庭
http://mp.weixin.qq.com/s?src=3×tamp=1487921722&ver=1&signature=mYbG5di3vSjs6tL-5iABbglEFN2YxjBJnLGMk-P2O-wbry0yhhcUC6QpkCXn0ZA0NbInroEZEPY5iJIMOEPMTojpslFZt4HjlxLVo04Pk4qkIyjOk5ClTzC2yQWcAkC2JdSdovyVwyrzQXwYhK22lTvxx-HTaOPBhKOsQoaT8=
http://mp.weixin.qq.com/s?src=3×tamp=1487921794&ver=1&signature=k9VQCZ384BFyVgS7TgPMHZ8mpOaIf5WqX63JOGGXtsxpA1PrOqVwtkAeo-0tK0Oqr-hy3Y89o0MppVx9BJ60ehFU-Ol7K60XqcJ6JfxHirhZqLiHXa7lXrdx4jmYgvLGW1UYB-eXdtW-UeMH9plpaqkERjlZU50EzEQ*m3ptA=
https://www.teamten.com/lawrence/290.paper/node7.html#SECTION00030000000000000000
https://en.wikipedia.org/wiki/Byzantine_fault_tolerance
http://www.8btc.com/baizhantingjiangjun
http://www.cs.cornell.edu/courses/cs614/1999sp/notes99/byzantine.html
http://www.360doc.com/content/16/0715/16/31342637_575744858.shtml
https://www.weusecoins.com/bitcoin-byzantine-generals-problem/
http://blog.csdn.net/yucan1001/article/details/7973179
http://www.farseer.cn/2015/05/17/the-byzantine-generals-problem/
http://pages.cs.wisc.edu/~sschang/OS-Qual/reliability/byzantine.htm
http://www.cs.utexas.edu/users/dahlin/projects/bft/
http://the-paper-trail.org/blog/barbara-liskovs-turing-award-and-byzantine-fault-tolerance/
https://www.quora.com/Distributed-Systems-How-do-Byzantine-Fault-Tolerance-algorithms-work