1990-8644 1990-8644 S1990-86442019000300308 Angola Cuba Ecuador 00 09 2019 00 09 2019 15 68 308 314

1998 2012 1999 2000 1982 2018 La Habana 2017 La Habana 2017 2006 20 3 3 71-91 2000 2005 2012 2018 La Habana 2018 2007 2018 La Habana