https://www.esrb.europa.eu/pub/pdf/wp/esrbwp21.en.pdf
https://www.riksbank.se/en-gb/press-and-published/notices-and-press-releases/debate-articles/payments-in-the-future-and-legal-protection-for-the-swedish-krona/
http://www.cso.ie/en/media/csoie/newsevents/documents/reportoftheeconomicstatisticsreviewgroup/ESRG_Presentation_-_Press_Briefing.pdf