1645-9199 1645-9199 S1645-91992021000100079 10.23906/ri2021.69a04 Portugal 30 03 2021 30 03 2021 69 79 86

2021 2021 2020 2020 99 2 2 64-76 2020 2021 2018 2021 2020 99 5 5 140-9 RFE/RL 2021 2021 2021 2021 2020 2021 2021