1. M. Hasan, The US should let its credit rating be downgraded – and shrug, The Guardian, 5 August 2011
2. Deutsche Vereinigung für Finanzanalyse und Asset Management, DVFA-Finanzschriften 6, 1 (2006)
3. J.H. Wosnitza, C. Denz, Physica A 392, 3666 (2013)
4. Securities Industry and Financial Markets Association, US Bond Market Outstanding (2014), http://www.sifma.org/research/statistics.aspx
5. Basel Committee on Banking Supervision, International convergence of capital measurement and capital standards (Bank for International Settlements, Basel, 2004), http://www.bis.org/publ/bcbs107.pdf