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
"Nunen, J. A. E. E. van",Contracting Markov decision processes,,Mathematisch Centrum,1976,Mathematical Centre tracts,,9061961297,,https://cir.nii.ac.jp/crid/1130000797864307200