1665-109X
1665-109X
S1665-109X2022000100201
10.31391/s2007-7033(2022)0058-002
Portugal
Portugal
Portugal
00
06
2022
00
06
2022
58
[
2001
5
2
2
1-17
]
[
1977
]
[
DigitalEcosystem
2007
]
[
2016
]
[
2005
]
[
2001
15
1
1
7-23
]
[
2000
2
2-3
2-3
87-105
]
[
2005
19
3
3
133-48
]
[
2015
24
44
44
25-39
]
[
1994
13
20-30
]
[
2015
]
[
2017
13
1
1
77-90
]
[
2013
5
2
2
165-78
]
[
2011
]
[
2020
16
1
1
9-16
]
[
2021
9-20
]
[
2020
14
2
2
1-22
]
[
2003
]
[
2004
39
4
4
199-201
]
[
1987
177-99
]
[
2019
10
4
4
]
[
2005
53
4
4
5-23
]