2223-4861 2223-4861 S2223-48612019000400039 Cuba Cuba Cuba 00 12 2019 00 12 2019 46 4 39 49

2013 32-4 2018 2015 42 4 4 14-25 2017 Comité Central PCC 2011 32-3 2008 1-56 2012 2010 2008 1-90 2012 NASA 2018 2014 2016 37 1 1 45-54 2016 2015 1-25 2012 1-38 2008 1 45-7 SMA 2016 WWF 2011 1-7