@Book{sitereport_71401,
 author = "今平, 利幸",
 title = "飛山城跡",
 volume = "3",
 publisher = "宇都宮市教育委員会",
 year = 1999,
 series = "宇都宮市埋蔵文化財調査報告書",
 number = "44",
 url = https://sitereports.nabunken.go.jp/71401,
 }