Hajime Miyazawa Shigeru Chiba Takashi Masuda Effectiveness and limitations of secondary servers for wide-area distributed file systems. 31-40 2000 31 Systems and Computers in Japan 11 http://dx.doi.org/10.1002/1520-684X(200010)31:11<31::AID-SCJ4>3.0.CO;2-J db/journals/scjapan/scjapan31.html#MiyazawaCM00