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 "Ershov, I︠U︡riĭ Leonidovich",Definability and computability,,Consultants Bureau,1996,Siberian school of algebra and logic,,0306110393,,https://cir.nii.ac.jp/crid/1130000798194414336