. (2011). "What Financial System for the Twenty-First Century?". In Per Jacobsson Lecture. USA: International Monetary Fund. Retrieved May 12, 2023, from https://www.elibrary.imf.org/view/book/9781463904340/ch02.xml
. "What Financial System for the Twenty-First Century?". Per Jacobsson Lecture. USA: International Monetary Fund, 2011. < https://doi.org/10.5089/9781463904340.029.ch002>. Web. 12 May. 2023.
. "What Financial System for the Twenty-First Century?". In Per Jacobsson Lecture, (USA: International Monetary Fund, 2011) accessed May 12, 2023, https://doi.org/10.5089/9781463904340.029.ch002
(2011). What Financial System for the Twenty-First Century?. In Per Jacobsson Lecture, USA: International Monetary Fund. available from: < https://doi.org/10.5089/9781463904340.029.ch002> [Accessed 12 May 2023]