VICENTE, Paula; REIS, Elizabeth. The Mobile-only Population in Portugal and Its Impact in a Dual Frame Telephone Survey. Survey Research Methods, [S. l.], v. 3, n. 2, p. 105–111, 2009. DOI: 10.18148/srm/2009.v3i2.1708. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/1708. Acesso em: 26 apr. 2024.