@Book{sitereport_820,
 author = "上原, 学",
 title = "開戸田遺跡　樋村遺跡3　扇田遺跡",
 volume = "",
 publisher = "佐久市教育委員会  and 佐久市文化財課",
 year = 2006,
 series = "佐久市埋蔵文化財調査報告書",
 number = "135",
 url = https://sitereports.nabunken.go.jp/820,
 }