2184-7770
2184-7770
S2184-77702021000400344
10.36367/ntqr.9.2021.344-354
España
España
30
06
2021
30
06
2021
9
344
354
[
2021
]
[
2011
18
3
3
6-12
]
[
1975
73
12
12
767-70
]
[
1976
8
1
1
79-92
]
[
2009
]
[
1978
3
3
3
9-14
]
[
1961
]
[
1975
66
66
141-8
]
[
1973
63
3
3
334-55
]
[
1982
7
3
3
2-6
]
[
1937
]
[
2014
23
23
23
187-210
]
[
1988
1.a
31-50
]
[
1989
]
[
2011
]
[
2009
]
[
1999
44
4
4
177-98
]
[
1968
58
1
1
61-88
]
[
1960
]
[
2002
]
[
2019
]
[
2010
]
[
1992
115
45-54
]
[
2017
61
56-65
]
[
1979
8
7
7
829-38
]
[
1979
23
2
2
11-8
]
[
2018
]
[
2015
]
[
2002
]
[
2017
]
[
1982
]