@Book{sitereport_71153,
 author = "永井, 敦",
 title = "水戸城跡",
 volume = "",
 publisher = "公益財団法人茨城県教育財団",
 year = 2020,
 series = "茨城県教育財団文化財調査報告",
 number = "444",
 url = https://sitereports.nabunken.go.jp/71153,
 }