2393-6606
2393-6606
S2393-66062017000200037
10.22235/ech.v6iespecial.1449
Chile
00
10
2017
00
10
2017
6
spe
37
42
[
2013
17
1
1
34-9
]
[
2016
16
2
2
205-18
]
[
1996
]
[
1979
]
[
2014
4
219-63
]
[
2009
]
[
]
[
2001
]
[
2011
]
[
1986
]
[
2009
]
[
2007
]
[
1998
277-346
]
[
1988
]
[
2006
]
[
2011
17
1
1
133-41
]
[
1996
22
2
2
4-5
]
[
2001
]
[
2005
]