https://www.mhi.com/technology/review/sites/g/files/jwhtju2326/files/media/pdf/e563030.pdf
https://www.mhi.com/technology/review/sites/g/files/jwhtju2326/files/tr/pdf/e483/e483019.pdf
https://power.mhi.com/regions/emea/pdf/igcc.pdf
https://www.jcoal.or.jp/eng/upload/cctinjapan_cct_english.pdf
https://www.meti.go.jp/meti_lib/report/2020FY/000474.pdf