Editorial Main Article Content John Calle-Siguencia INGENIUS - EDITOR IN CHIEF http://orcid.org/0000-0002-2148-3297 Keywords Abstract 197 | PDF (Español (España)) Downloads 62 PDF Downloads 146 Article Sidebar PDF (Español (España)) PDF Published Jun 29, 2021 Article Details Issue No. 26 (2021): july-december Section Editorial