著者名,書名,版表示,出版者名,出版年,シリーズ名,番号,ISBN,ISSN,URL "Ekwall, Eilert",On the origin and history of the unchanged plural in English,,C.W.K. Gleerup,1912,Lunds universitets årsskrift,,,,https://cir.nii.ac.jp/crid/1130000794455313280