Region
- China 2 results
- Czech Republic 1 results
- Czechoslovakia 1 results
- Developing countries 1 results
- East Asia 1 results
- Economic conditions 1 results
- Europe 6 results
- Europe, Central 5 results
- Europe, Eastern
- European Economic Community countries 2 results
- European Union countries 1 results
- Former Soviet Republics 1 results
- Former Soviet republics 15 results
- Germany (East) 1 results
- Hungary 2 results
- Latin America 1 results
- Poland 3 results
- Russia (Federation) 2 results
- Soviet Union 6 results
- United States 1 results