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
"Knif, Johan",Parameter variability in the single factor market model : an empirical comparison of tests and estimation procedures using data from the Helsinki stock exchange,,Finnish Society of Sciences and Letters,1989,Commentationes scientiarum socialium,,9516531962,,https://cir.nii.ac.jp/crid/1130282272076483712