WAGNER, James. Adaptive Contact Strategies in Telephone and Face-to-Face Surveys. Survey Research Methods, [S. l.], v. 7, n. 1, p. 45–55, 2012. DOI: 10.18148/srm/2013.v7i1.5037. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/5037. Acesso em: 29 mar. 2024.