Nuno Luís Madureira https://digigov.cepese.pt/portal/pt/publicacoes/autores/nuno-luis-madureira https://digigov.cepese.pt/portal/@@site-logo/CEPESE+home.png Nuno Luís Madureira Artigos Opportunity and Chance: The Introduction of Sampling Techniques in Portugal 2003