CALDERWOOD, Lisa. Improving between-wave mailings on longitudinal surveys: A randomised experiment on the UK Millennium Cohort Study. Survey Research Methods, [S. l.], v. 8, n. 2, p. 99–108, 2014. DOI: 10.18148/srm/2014.v8i2.5391. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/5391. Acesso em: 20 jul. 2024.