v15n1a06.pdf https://www.cepese.pt/portal%26%26quot%26quot/pt/publicacoes/obras/volume-15-number-1-june-2017/artigos/v15n1a06.pdf/view https://www.cepese.pt/portal%26%26quot%26quot/@@site-logo/CEPESE+home.png v15n1a06.pdf v15n1a06.pdf — 509 KB