https://cris.usm.cl/entities/tesis/411df48f-de2c-48bb-ad6e-49d921647621
https://cris.usm.cl/entities/tesis/83ccb726-ba0e-4c23-8d54-03e9a809cd1f
https://cris.usm.cl/entities/tesis/22b880fb-9748-4864-a313-2093bab547a2
https://cris.usm.cl/entities/tesis/29873045-8b9c-45e0-bfd4-c04bfb3ed9dc