1. Ashtor, E. 1972. Banking instruments between the Muslim East and Christian West. Journal of European Economic History 1: 553–573.
2. Baxter, W. 1983. Bank exchange of transactional paper: Legal and economic perspectives. Journal of Law and Economics 26: 541–588.
3. Bliss, R. 2003. Bankruptcy law and large complex financial organizations: A primer. Federal Reserve Bank of Chicago Economic Perspectives 27(1): 48–58.
4. Cavalcanti, R., and N. Wallace. 1999. A model of private banknote issue. Review of Economic Dynamics 2: 104–136.
5. Committee on Payment and Settlement Systems. 2005. Statistics on payment and settlement systems: Figures for 2003. Basel: Bank for International Settlements.