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
"Gruber, Marvin H. J.",Improving efficiency by shrinkage : the James-Stein and ridge regression estimators,,Marcel Dekker,1998,Statistics : textbooks and monographs,,0824701569,,https://cir.nii.ac.jp/crid/1130282272694104960