1. Areeda, P. and Hoverkamp, H. “An Analysis of Antitrust Principles and Their Application,” Antitrust Law, 1988/736.2 Supp, pp. 675-701, 1988.
2. Bank for International Settlements. Cross-Border Securities Settlements. www.bis.org, Basel, March 1995.
3. Bank for International Settlements. A Glossary of Terms Used in Payments and Settlement Systems. www.bis.org, Basel, March 2003.
4. Bank for International Settlements. Recommentations for Central Counterparties. www.bis.org, Basel, November 2004.
5. Baumol, W.J., “On the proper cost test for natural monopolies in a multiproduct industry,” American Economic Review, vol. 67, pp. 809–822, 1977.