1405-9193
1405-9193
S1405-91932020000100251
10.22201/iij.24484881e.2020.42.14343
Chile
00
06
2020
00
06
2020
42
251
270
[
1987
5
96
96
]
[
2011
91
91
]
[
2011
2
31
31
]
[
1988
33
33
]
[
2012
]
[
2009
4
4
]
[
1997
1
97
97
]
[
2006
54
54
]
[
2008
1
1
]
[
2007
4
12
12
]
[
1967
]
[
1955
56
56
]
[
2007
57
57
]
[
1972
1
86
86
]
[
1963
]
[
2006
21
21
]
[
1990
74
74
]
[
1987
22
22
]
[
1992
3
42
42
]
[
1995
]
[
2011
1
9
9
]
[
1987
1
46
46
]
[
1932
7
7
]
[
1985
]
[
1993
]
[
2011
21
21
]
[
1985
33
33
]
[
2013
99
99
]
[
2008
121
7
7
]
[
2009
]
[
1998
2
43
43
]
[
2008
1
35
35
]