@Book{sitereport_33399,
 author = "大分県教育委員会, ",
 title = "大分の中世城館",
 volume = "3",
 publisher = "大分県教育委員会",
 year = 2003,
 series = "大分県文化財調査報告書",
 number = "161",
 url = https://sitereports.nabunken.go.jp/33399,
 }