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##Author: Yamanaka Hiroki, Matsumoto Toshiyuki, Shinoda Shinji, Niwa Akira
##Organization: Yamanaka Hiroki; Matsumoto Toshiyuki; Shinoda Shinji; Niwa Akira
##Publish: Industrial Engineering and Management Systems Volume 11, Issue2, p188~195, 30 June 2012