@Book{sitereport_61119,
 author = "瀧野, 巧 and 千葉, 孝之",
 title = "長坂古墳",
 volume = "",
 publisher = "群馬県北群馬郡吉岡町教育委員会",
 year = 2009,
 series = "吉岡町文化財調査報告書",
 number = "28",
 url = https://sitereports.nabunken.go.jp/61119,
 }