1241- Economic Integration among Socialist Countries

505- The System of Planning in a Socialist Economy

495- Basic Principles of the New Economic System of Planning and Managing of National Economy in Socialist Countries

997- The Institutional Framework of Socialist Foreign Trade Planning and the Way of Drawing Up the Plan

331- The Interrelation of Social and Economic Development and the Problem of ''Balance''.

194-The Council of Mutual Economic Aid (CMEA)

153- Some Ideas about Economic Planning in Developing Countries

688- System of Economic Plans, Indicators and Norms

640-Economic Development and International Integration

1131- Price Planning in Socialism (bases and possibilities - its Preparation, Implementation and Organization at the case of the German Democratic Republic)