2184-7770
2184-7770
S2184-77702021000300864
10.36367/ntqr.8.2021.864-870
Portugal
Portugal
20
06
2021
20
06
2021
8
864
870
[
2020
13
749-57
]
[
2020
]
[
2013
3
2
2
112-22
]
[
2012
]
[
2020
]
[
2013
]
[
2005
]
[
2020
45
1
1
41-51
]
[
2013
2
4
4
31-41
]
[
2018
80
106-17
]
[
1990
2nd
]
[
2019
10
]
[
2020
17
21
21
1-14
]
[
2020
56
4
4
797-803
]
[
1998
1
3
3
181-203
]
[
2012
47
2
2
721-45
]