@Book{sitereport_106767,
 author = "不明, ",
 title = "桓武天皇は、なぜ長岡京を捨てたのか？",
 volume = "",
 publisher = "",
 year = 1994,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/106767,
 }