@techreport{weko_186079_1,
   author	 = "佐藤,誠 and 長坂,真理 and 木下,英治",
   title	 = "段階的近傍探索を用いた昇降機保守の巡回スケジューリング",
   year 	 = "2018",
   institution	 = "(株)東芝, (株)東芝, 東芝エレベータ(株)",
   number	 = "21",
   month	 = "feb"
}