Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleRUBÉN SIERRA MEJÍA (1937-2020).AuthorsURIBE BOTERO, ÁNGELAPublicationIdeas y Valores, 2020, Vol 69, Issue 174, p9ISSN0120-0062Publication typeArticleDOI10.15446/ideasyvalores.v69n174.89514