@Book{sitereport_60703,
 author = "大塚, 昌彦",
 title = "空沢遺跡",
 volume = "第7次",
 publisher = "渋川市教育委員会",
 year = 1988,
 series = "渋川市発掘調査報告書",
 number = "17",
 url = https://sitereports.nabunken.go.jp/60703,
 }