2318-1982 2318-1982 S2318-19822015000200015 10.20435/2318-1982-2015-v.40(02) Ecuador España 00 12 2015 00 12 2015 40 15 34

18 2 2 375-95 13 2 2 64 2 2 69-88 035 035 39-71 1 1 1 3-33 8 8 35-65 8 11-33 10 37-62