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 "Koskenkylä, Heikki",An evaluation of the predictive value of the investment survey of the Bank of Finland Institute for Economic Research,,"Bank of Finland, Institute for Economic Research",1969,Suomen Pankin taloustieteellisen tutkimuslaitoksen julkaisuja = Bank of Finland institute for economic research publications,,,,https://cir.nii.ac.jp/crid/1130000796279009024