@techreport{oai:tsukuba.repo.nii.ac.jp:00022803,
 author = {Mizuno, Makoto and 水野, 誠 and Saji, Akira and 佐治, 明 and Sumita, Ushio and 住田, 潮 and Suzuki, Hideo and 鈴木, 秀男},
 month = {Nov},
 title = {Optimal threshold analysis of segmentation methods for identifying target customers},
 year = {2005}
}