1409-469X 1409-469X S1409-469X2019000100078 10.15517/dre.v20i1.33024 Mexico 00 06 2019 00 06 2019 20 1 78 93

1995 1987 1973 2000 2001 20 2001 2002 2001 33-57 2012 1988 2006 1989 159-221 1997 1979 1985 2006 9 9 1994 1995 1973