1390-6542
1390-6542
S1390-65422017000100358
10.29019/enfoqueute.v8n1.145
Ecuador
Italia
00
02
2017
00
02
2017
8
358
373
[
2013
653-9
]
[
2010
4
139-48
]
[
2010
41-51
]
[
1982
45-135
]
[
1984
321-43
]
[
1992
6
]
[
1999
98
45-60
]
[
1999
]
[
2003
]
[
1994
15-9
]
[
1976
11
1
1
56-75
]
[
1976
]
[
2014
2363-8
]
[
2003
]
[
2000
41
3
3
369-79
]
[
2010
20
290-322
]
[
1943
]
[
2014
]
[
2010
1-11
]
[
2004
34
4
4
449-66
]
[
2012
16
117-27
]
[
2015
12
1
1
1-13
]
[
2014
1-17
]
[
1999
36
253-63
]
[
2013
44
44
417-30
]
[
2013
43
7
7
1517-26
]
[
2015
41
1
1
47-55
]