6Artus, Jacques R. and Rudolf R. Rhomberg, 1973, "A Multilateral Exchange Rate Model", IMF Staff Papers, November, pp. 591 -611.
7Artus, JacquesR and Anne Kenny McGuirk, 1981, "A Revised Version of the Multilateral Exchange Rate Model", IMF Staff Paper, June, pp. 275 -309.
8Cox, Michael W. , 1986, "A New Alternative Trade -weighted Dollar Exchange Rate Index", Federal Reserve Bank of Dallas Economic Review, September, pp. 20 - 28.
9Durand, Marline, Jacques Simon and Colin Webb, 1992, "OECD Indicators of International Trade and Competitiveness". OECD Economic Working Paper No. 120.
10Enoch, C. A, 1978, "Measures of Competitiveness in International Trade", Bank of England Quarterly Bulletin, June, pp. 181 - 185.