Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Gary C. McDonald,Ridge regression,WIREs Computational Statistics,1939-5108,Wiley,2009-07,1,1,93-100,https://cir.nii.ac.jp/crid/1360021393779104512,https://doi.org/10.1002/wics.14