1990-8644 1990-8644 S1990-86442019000300007 Cuba Cuba Ecuador 00 09 2019 00 09 2019 15 68 7 13

2007 5 1-22 Colectivo de Autores 2016 2001 2012 2016 10 10 73-80 2011 2012 1 17 17 72-82