2477-9199 2477-9199 S2477-91992019000200064 10.26807/cav.v0i08.217 Ecuador Spain 00 12 2019 00 12 2019 8 64 70

2004 1983 4a 1997 1998 1991 22 2 2 297-316 Horacio 2008 334-410 1994 1998 2001 388-91 2002 Segunda 2014 1999