0188-2546 0188-2546 S0188-25462019000100043 10.19130/iifl.litmex.30.1.2019.1158 Mexico 00 06 2019 00 06 2019 30 1 43 66

1977 155-60 1996 2a 1989 11-228 1998 860-4 1998 977-9 1989 1995 25-46 1986 34-35 34-35 81-92 1995 13-22 1991 1981