2023-09-29T13:13:25Z http://metadatos-ecuciencia-utc.com:9000/Ecuciencia/oai Cienciométrico http://metadatos-ecuciencia-utc.com:9000/Ecuciencia/oai 2.0 edwin.quinatoa@utc.edu.ec 2023-09-29T13:13:25Z persistent YYYY-MM-DDThh:mm:ssZ gzip deflate oai ojs.ecucienciautc : oai:ojs.ecucienciautc:article/282} oai:ojs.ecucienciautc:libro/282} oai:ojs.ecucienciautc:ponencia/282} http://memory.loc.gov/ammem/oamh/lcoa1_content.html Selected collections from American Memory at the Library of Congress http://oai.east.org/foo/ http://oai.hq.org/bar/ http://oai.south.org/repo.cgi