@Book{sitereport_131477,
 author = "冨沢, 一明",
 title = "藤ケ城",
 volume = "",
 publisher = "佐久市教育委員会 and 佐久市教育委員会社会教育部文化振興課文化財事務所",
 year = 2023,
 series = "佐久市埋蔵文化財調査報告書",
 number = "293",
 url = https://sitereports.nabunken.go.jp/131477,
 }