European Commission : Directorate-General for Economic and Financial Affairs. (1985). Competitiveness of European Industry: Situation to date. The determinants of supply in the Community. The development of market services in the European Community, the United States and Japan. Technical progress, structural change and employment. Luxembourg: Office for Official Publications of the European Communities.

European Commission : Directorate-General for Economic and Financial Affairs. Competitiveness of European Industry: Situation to Date. The Determinants of Supply in the Community. The Development of Market Services in the European Community, the United States and Japan. Technical Progress, Structural Change and Employment. Luxembourg: Office for Official Publications of the European Communities, 1985.

European Commission : Directorate-General for Economic and Financial Affairs. Competitiveness of European Industry: Situation to Date. The Determinants of Supply in the Community. The Development of Market Services in the European Community, the United States and Japan. Technical Progress, Structural Change and Employment. Luxembourg: Office for Official Publications of the European Communities, 1985.