0252-8584 0252-8584 S0252-85842019000200006 Cuba Ecuador Cuba 00 12 2019 00 12 2019 162 2

1987 2017 2015 2015 60 60 2015 33 33 75-85 CITMA 1997 7 edición extraordinaria 7 47 CITMA 2008 2013 2011 2011 2013 1999 1999 4 1 1 84-99 2013 2011 2012