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2. US Department of Energy, Database, Independent Statistics and Analysis, Energy Information Administration, http://www.eia.doe.gov/emeu/international/contents.html
3. World Economic Outlook, IMF, Apr. 2010, http://www.imf.org/external/pubs/ft/weo/2010/01/index.htm
4. Scenario Conditions of Functioning of Russia’s Economy: Principal Parameters of the Forecast of Russia’s Socioeconomic Development for 2011 and the Planning Period of 2012–2013, June 2010, http://www.economy.gov.ru/minec/activity/sections/macro/prognoz/doc20100604-04
5. Data on Foreign Currency Investments of the Central Bank of Russia, http://www.cbr.ru/hd-base/VALINT.asp