v15n2a04.pdf https://digigov.cepese.pt/portal/pt/publicacoes/obras/volume-15-number-2-december-2017/artigos/v15n2a04.pdf/view https://digigov.cepese.pt/portal/@@site-logo/CEPESE+home.png v15n2a04.pdf v15n2a04.pdf — 111 KB