7Swoboda A K. Vehicle currencies in the foreign exchange market:the case of the dollar[A].{H}New York,1969.30-40.
8Paul Krugman. The international role of the dollar:theory and prospect[R].{H}NBER Working Paper,1984.261-278.
9Philipp Hartmann. The currency denomination of world trade after european monetary union[J].{H}Journal of the Japanese and International Economics,1998,(4):424-454.
10Richard Friberg. In which currency should exporters set their prices[J].{H}JOURNAL OF INTERNATIONAL ECONOMICS,1997,(1):59-76.
