3V. K. Chetty, 1969. On Measuring the Nearness of Near Money. American Economic Review.
4Marc A. Miles, 1978, Currency Substitution, Flexible Exchange Rates, and Monetary Independence. American Economic Review., vol. 68, 6.
5Micheal D. Bordo& Ehsan U. Choudhri, 1982. Currency Substitution and the Demand for Money: Some Evidence for Canada. Journal of Money, Credit and Banking, Vol. 14, 2.
6Jorge Brage de Macedo, 1952. Portfolio Diversification Across Currencies, The International Monetary System Under Flexible Exchange Rates, published by Cambridge, Massachusetts, Ballinger.
7Lee R. Thomas, 1985. Portfolio Theory and Currency Substitution, Journal of Money, Credit and Banking, vol, 17, 8.
8David T. King, Bluford H. Putnam&D. Sykes Wilford, 1975. A Currency Portfolio Approach to Exchange Rate Determination: Exchange Rate Stability and the Independence of Monetary Policy, The Monetary Approach to International Adjustment, New York: Prager.
9Stephen S. Poloz, 1986. Currency Substitution and the Precautionary Demand for Money, Journal of International Money and Finance,vol. 5.
10Boyer, R. S. and Kingston, G. H. , 1987, "Currency substitution under finance constraints", Journal of International Money and Finance, 6, 235-50.
