1405-6666
1405-6666
S1405-66662007000200561
Mexico
00
06
2007
00
06
2007
12
33
561
580
[
1989
13
13
]
[
1998
]
[
1995
]
[
2004
XXXIII
3
3
127
]
[
1989
1
3
3
]
[
1993
XXII
4
4
88
]
[
2004
XXIII
3
3
127
]
[
1990
]
[
1997
]
[
1996
]
[
1980
]
[
1997
]
[
2000
]
[
2002
]
[
2004
XXXIII
3
3
127
]
[
1994
XXIII
3
3
91
]
[
2000
]
[
1999
24
261-72
]