@Book{sitereport_91259,
 author = "山下, 誠一 and 坂井, 勇雄",
 title = "史跡恒川官衙遺跡　恒川遺跡群",
 volume = "",
 publisher = "飯田市教育委員会",
 year = 2021,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/91259,
 }