Resume
This work is cataloged in the Scientific Portal. Officially published in Fronteiras: Journal of Social, Technological and Environmental Science (2020). Referenced as: "Alcina de Oliveira Martins; Maria Nazaré Coimbra; Susana Oliveira Sa; José António Oliveira".
The complete abstract and full text can be accessed directly at the official DOI: https://doi.org/10.21664/2238-8869.2020v9i3.p341-354