@Book{sitereport_87800,
 author = "飯山市遺跡調査団, ",
 title = "岡山上段の発掘",
 volume = "概要編",
 publisher = "飯山市教育委員会",
 year = 1991,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/87800,
 }