Region
Alemania
1
América Latina
1
Andes Region
2
Argentina
1
Arica (Chile : Department)
1
Arica (Department)
1
California
1
Canada
4
Chile
1
Colombia
1
Cuba
3
Eastern Europe
1
España
4
Europe
1
Europe de l'Est
1
Europe, Eastern
1
États-Unis
2
Florida
1
Germany
1
Great Britain
2
Huesca (Province)
1
Ingeniería civil
1
Jerez de la Frontera (Spain)
1
Latin America
2
Mexico
33
México
32
Ohio
1
Patagonia (Argentina and Chile)
1
Poland
2
Resolución de problemas
1
Romania
1
Segre (España, Valle)
1
Spain
7
SpainzHuesca (Province)
1
Toledo
1
USA
4
United States
18