1815-7696 1815-7696 S1815-76962019000400574 Cuba 00 12 2019 00 12 2019 17 4 574 588

2012 23 3 3 279-94 2007 15 15 2002 2009 5 6 6 121-39 2011 50 1 1 61-86 2015 51 1 1 149-65 2015 15 69 69 141-61 2016 La Habana, Cuba 2010 11 11 1-7 2011 4 10 10 70-7 2012 33 1 1 77-86 2012 18 2 2 83-94 2014 Buenos Aires, Argentina Cuba. Ministerio de Educación Superior 2018 2015 31 2015 2015 223-36 2018 2017 5 2 2 38-58 2015 4 3 3 228-48 2015 10 3 3 60-5 2010 1 2014 8 8 188-218