Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI)
"Arai, Shinichi and Sano, Ikuo","Spain's Renewable Energy Policy, Its Success and Problems",Economic Studies,04516265,北海道大学大学院経済学研究科,2014-01-24,63,2,29-47,https://cir.nii.ac.jp/crid/1050564288969034240,