@Book{sitereport_100760,
 author = "九重町教育委員会, ",
 title = "大分県二日市洞穴",
 volume = "分析編",
 publisher = "九重町教育委員会",
 year = 2004,
 series = "九重町文化財調査報告",
 number = "27",
 url = https://sitereports.nabunken.go.jp/100760,
 }