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 "有川, 節夫",Elementary formal systems and formal languages : simple formal systems,,"Kyushu University, Research Institute of Fundamental Information Science",1969,Research report,,,,https://cir.nii.ac.jp/crid/1130000796863177984