Region
Europe --
25
European Union Countries --
9
European Union Countries
7
Europe, Eastern
6
European Union countries
6
European Union countries --
3
Europe, Central
2
European Union --
2
Amsterdam --
1
Asia
1
Asia --
1
Europe
1
Europe, Central --
1
Europe, Eastern --
1
Europe, Eastern economic integration
1
European Economic Community Countries
1
European Economic Community countries
1
Europen Union countries --
1
Regional disparities
1
Scandinavia
1