
https://theconversation.com/espana-supone-el-1-del-mercado-del-arte-global-ni-tan-mal-224584

https://theconversation.com/y-si-en-las-elecciones-generales-contaramos-los-votos-como-los-suecos-216234

https://www.v-dem.net/media/filer_public/99/de/99dedd73-f8bc-484c-8b91-44ba601b6e6b/v-dem_democracy_report_2019.pdf