2183-8453 2183-8453 S2183-84532021000200042 10.31252/rpso.23.10.2021 30 12 2021 30 12 2021 12 42 47

1 2020 2 2019 3 2020 4 DGS 5 6 Diário da República 7 2020 8 2020 9 2005 10 2017 11 2021 12 2020 13 2020 14 2020 2020 16 2021 17 2021