著者名,論文名,雑誌名,ISSN,出版者名,出版日付,巻,号,ページ,URL,URL(DOI)
Ottar Michelsen and Luitzen de Boer,Green procurement in Norway; a survey of practices at the municipal and county level,Journal of Environmental Management,0301-4797,Elsevier BV,2009-10,91,1,160-167,https://cir.nii.ac.jp/crid/1360580235042591360,https://doi.org/10.1016/j.jenvman.2009.08.001