1. GATT, “Trends in International Trade”, (1958), known as the “Haberler Report”.
2. The effect of foreign trade on the distribution of income;Heckscher;Ekonomisk Tidskrift,1919
3. Domestic production and foreign trade: The American capital position reexamined;Leontief,1955
4. The general theory of second best;Lipsey;Review of Economic Studies,1956
5. International and interregional trade;Ohlin,1933