Author,Title,Journal,ISSN,Publisher,Date,Volume,Number,Page,URL,URL(DOI) Fuminori Sano and Keigo Akimoto and Takashi Homma and Toshimasa Tomoda,Analysis of Technological Portfolios for C02 Stabilizations and Effects of Technological Changes,The Energy Journal,0195-6574,SAGE Publications,2005-01-01,27,,141-162,https://cir.nii.ac.jp/crid/1873116917846907904,https://doi.org/10.5547/issn0195-6574-ej-volsi2006-nosi1-6