http://library.fes.de/pdf-files/bueros/rom/16042.pdf
https://www.esri.ie/system/files/publications/WP677_0.pdf
https://www.imf.org/-/media/Files/Publications/PP/2023/English/PPEA2023001.ashx
https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/680185/Governor_letter_to_CX_-_Feb_2018.pdf