Nobuyoshi Sato Minoru Udagawa Minoru Uehara Yoshifumi Sakai Hideki Mori Scalability and Reliability in a Distributed Search Engine. 57-62 2002 conf/icpads/2002 ICPADS http://doi.ieeecomputersociety.org/10.1109/ICPADS.2002.1183378 db/conf/icpads/icpads2002.html#SatoUUSM02