1665-8027 1665-8027 S1665-80272005000100149 10.29043/liminar.v3i1.175 Mexico 00 06 2005 00 06 2005 3 1 149 165 1989 IV 1 y 2 1990 1990 1986 III 1 y 2 1 y 2 1981 1992 1888 1990 1991 1986 1995 1956 1957 1995