1. A theory of demand for products distinguished by place of production;Armington;International Monetary Fund Staff Papers,1969
2. An import allocation model for the Common Market;Barten;Cahiers Economiques de Bruxelles,1971
3. COMET: A medium-term macroeconomic model for the European Economic Community;Barten;European Economic Review,1976
4. Updated world trade matrices, 1971–1975, and An analysis of recent changes in trade patterns;Beaumont,1977
5. Estimating consumer import demand equations;Berner,1975