2024-03-29T00:37:18Zhttp://dspace.ups.edu.ec/oai/requestoai:dspace.ups.edu.ec:123456789/56922014-01-21T22:45:00Zcom_123456789_5606com_123456789_5395com_123456789_16562col_123456789_5617oai:dspace.ups.edu.ec:123456789/61712014-03-24T22:48:19Zcom_123456789_5606com_123456789_5395com_123456789_16562col_123456789_5617oai:dspace.ups.edu.ec:123456789/56912014-01-21T22:51:16Zcom_123456789_5606com_123456789_5395com_123456789_16562col_123456789_5617oai:dspace.ups.edu.ec:123456789/56932014-01-21T23:23:02Zcom_123456789_5606com_123456789_5395com_123456789_16562col_123456789_5617