@Book{sitereport_253,
 author = "塩崎, 幸夫",
 title = "史跡上田城跡",
 volume = "平成3年度",
 publisher = "上田市教育委員会",
 year = 1992,
 series = "上田市文化財調査報告書",
 number = "47",
 url = https://sitereports.nabunken.go.jp/253,
 }