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 "Tiersma, Piter Meijes",Aspects of the phonology of Frisian based on the language of grou,,"Vrije Universiteit, Studierichting Fries, 1979",1979,Meidielingen,,,,https://cir.nii.ac.jp/crid/1130000798253139456