ORCID [https://orcid.org/0000-0003-2457-1791]
Google Scholar [https://scholar.google.com/citations?user=GLpBPNMAAAAJ&hl=es&oi=ao]
Researchgate [https://www.researchgate.net/profile/Rafael_Valencia-Garcia]
DBLP [https://dblp.org/pers/hd/v/Valencia=Garc=iacute=a:Rafael]