1Agarwal, J. Optimal Monetary Reserves for Developing Countries[J]. Review of World Economics, 1971,107( 1 ).
2Jeanne, O and R. Ranciere. The Optimal Level of International Reserves for Emerging Market Countries: A New Formula and Some Applications[R]. CEPR Discussion Paper, 2008, No. 6723.
3Triffin, R. Gold and the Dollar Crisis [M]. New Haven: Yale University Press, 1960.