2184-7770
2184-7770
S2184-77702021000200181
10.36367/ntqr.7.2021.181-189
Portugal
Italy
Denmark
10
06
2021
10
06
2021
7
181
189
[
2007
]
[
2009
53-66
]
[
1994
]
[
2014
]
[
2001
]
[
2011
]
[
2010
4
6-16
]
[
2012
21
135-46
]
[
2013
]
[
2002
]
[
1980
]
[
1998
]
[
2009
]
[
2010
]
[
1995
]
[
2007
a
1
303-8
]
[
2007
b
1
207-11
]
[
2015
20
134-52
]
[
1984
]
[
2011
]