@Book{sitereport_33421,
 author = "甲斐, 寿義",
 title = "北友田横穴墓群",
 volume = "",
 publisher = "大分県教育庁埋蔵文化財センター",
 year = 2005,
 series = "大分県教育庁埋蔵文化財センター調査報告書",
 number = "5",
 url = https://sitereports.nabunken.go.jp/33421,
 }