@Book{sitereport_143559,
 author = "永井, 三郎",
 title = "発掘された真田の城　沼田城跡",
 volume = "",
 publisher = "沼田市教育委員会",
 year = 2025,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/143559,
 }