About MATSUBAYASHI N
About NTT Communications, Kanagawa, JPN
About UMEZAWA M
About Keio Univ., Yokohama, JPN
About MASUDA Y
About Keio Univ., Yokohama, JPN
About NISHINO H
About Keio Univ., Yokohama, JPN
About European Journal of Operational Research
About merger
About Management engineering in general
About 平衡
About 企業
About 合併