0034-7418
0034-7418
S0034-74182018000200233
10.15446/rcciquifa.v47n2.73968
Venezuela
Venezuela
Venezuela
USA
00
08
2018
00
08
2018
47
2
233
253
[
2000
11
39
39
]
[
2004
67
10
10
1965
]
[
2011
63
182
]
[
2007
1
28
28
274
]
[
1991
8
458-61
]
[
1982
25
8
8
990
]
[
2013
36
9
9
543
]
[
2002
65
202
]
[
2001
3
1
1
]
[
2003
636
1-3
1-3
1
]
[
2004
23
136
]
[
2006
94
1
]
[
2008
49
1
1
71
]
[
2008
16
3233
]
[
2015
56
2
2
137
]
[
2018
81
1, 2
1, 2
]
[
1997
47
11
11
1208
]
[
1984
126
]
[
2015
78
1-2
1-2
94
]
[
2006
1
1
1
55
]
[
1982
7
534
]
[
2000
48
229
]
[
1977
123
89
]
[
1977
29
6
6
337
]
[
2001
158
311
]
[
2006
31
9
9
1869
]
[
2000
31
1
1
60
]