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
"Karasimeonov, Georgi","The 1990 election to the Bulgarian Grand National Assembly and the 1991 election to the Bulgarian National Assembly : analyses, documents and data",,Edition Sigma,1997,Founding elections in Eastern Europe,,389404165X,,https://cir.nii.ac.jp/crid/1130282270464812160