1990-8644 1990-8644 S1990-86442018000500081 República del Ecuador 00 12 2018 00 12 2018 14 81 88

2015 16 40 40 2013 14 36 36 943-70 2017 25 47 47 2015 2014 10 1 1 126-44 2015 16 40 40 2017 2 2 2 318-45 2017 9 3 3 2014 9 18 18 5-26 2017 9 3 3 46-51 2017 32 102-11 2015 2 10 10 113-22