1390-1249
1390-1249
S1390-12492018000200155
10.17141/iconos.61.2018.3325
Ecuador
00
05
2018
00
05
2018
61
155
160
[
2012
373-400
]
[
2011
11
26-32
]
[
2007
]
[
2005
a
11-37
]
[
2005
b
3
127-33
]
[
2004
33
2
2
385-90
]
[
2003
25-55
]
[
2000
]
[
1997
]
[
1994
]
[
1991
22
120-35
]
[
1984
a
1
22-8
]
[
1984
b
1
57-9
]
[
1981
]
[
1980
a
1
48-52
]
[
1980
b
2
49-50
]
[
1986
]
[
2013
89
7-20
]
[
2010
81
21-32
]
[
2008
75
7-22
]
[
1983
]