2227-1899 2227-1899 S2227-18992019000300001 Cuba Cuba Cuba 00 09 2019 00 09 2019 13 3 1 12

2012 2 1 1 291-300 1996 2015 1471-2013. 2013 61-75 2014 2015 IEC 1997 1-53 1992 1995 1994 2013 72 8 8 10-4 2000 163 2009 2016 27 9 9 1028-42 1965 8 3 3 338-53