1. University of Barcelona, Barcelona, Spain
2. University of El Algarve, Faro, Portugal
3. National Autonomous University of México, City of México, México
4. Mar del Plata National University, Mar del Plata, Argentina
5. University of Puerto Rico, San Juan, Puerto Rico
6. University of Caldas, Manizales, Colombia
7. University of la República, Montevideo, Uruguay
8. State University of Ponta Grossa, Ponta Grossa, Brasil
9. Central University of Venezuela, Caracas, Venezuela
10. University of La Habana, La Habana, Cuba