1. Graduate School of Chemical Engineering, Universidad Mayor de San Andrés (UMSA), Av. Mariscal Santa Cruz 1175, La Paz, Bolivia
2. The United Nations University Institute on Comparative Regional Integration Studies (UNU-CRIS), 8000 Bruges, Belgium
3. School of Geography Earth Science and Society, McMaster University, Hamilton, ON L8S 4L8, Canada
4. Departamento de Ciencias Naturales y Exactas, Universidad de Guadalajara, Ameca 46600, Mexico