1390-6712
1390-6712
S1390-67122018000100027
10.24133/maskay.v8i1.773
Ecuador
00
05
2018
00
05
2018
8
1
27
34
[
2009
XVIII
81-104
]
[
2003
28
93-105
]
[
1985
14
149-67
]
[
2007
39
75-81
]
[
1996
54
21-30
]
[
1997
30
289-304
]
[
1985
14
149-67
]
[
1987
92
180-5
]
[
1994
33
559-65
]
[
1994
]
[
1996
54
651-6
]
[
1980
13
167-70
]
[
1927
]
[
1979
86
523-48
]
[
1993
19
121-37
]
[
Zettlex
2018
]
[
Sense, Sensors & Instruments
2018
]
[
2011
2011
783-8
]
[
2012
]
[
Universidad Técnica de Machala
2018
]