@Book{sitereport_97050,
 author = "大塚 初重,  and 小林 三郎, ",
 title = "茨城県・舟塚古墳",
 volume = "2",
 publisher = "出版者不明",
 year = 1971,
 series = "",
 number = "",
 url = https://sitereports.nabunken.go.jp/97050,
 }