@Book{sitereport_101618,
 author = "下仁田町教育委員会, ",
 title = "荒船風穴・栃窪風穴",
 volume = "",
 publisher = "下仁田町教育委員会 and 中之条町教育委員会",
 year = 2009,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/101618,
 }