0035-001X
0035-001X
S0035-001X2021000300415
10.31349/revmexfis.67.415
Ecuador
Venezuela
00
06
2021
00
06
2021
67
3
415
421
[
2000
474
282
]
[
2002
65
084017
]
[
1999
83
4690
]
[
2001
504
38
]
[
1997
396
64
]
[
2001
497
271
]
[
2010
81
086004
]
[
2015
75
48
]
[
2015
32
035020
]
[
2019
02
02
035
]
[
2000
62
044017
]
[
1985
18
2937
]
[
2000
61
033005
]
[
2004
70
104009
]
[
]
[
2000
478
434
]
[
2000
62
046008
]
[
2004
0402
002
]
[
2003
67
105003
]
[
2004
70
104029
]
[
2005
72
124012
]
[
2000
581
309
]
[
1933
83
143
]