https://www.esri.ie/system/files/publications/RS123.pdf
https://www.wsi.de/fpdf/HBS-008657/p_wsi_report_86e_2023.pdf
https://www.bruegel.org/wp-content/uploads/2021/05/PC-2021-11-ecofin-210521.pdf
https://opportunityinsights.org/wp-content/uploads/2020/05/tracker_paper.pdf