JÄCKLE, Annette; BURTON, Jonathan; COUPER, Mick P.; LESSOF, Carli. Participation in a mobile app survey to collect expenditure data as part of a large-scale probability household panel: coverage and participation rates and biases. Survey Research Methods, [S. l.], v. 13, n. 1, p. 23–44, 2019. DOI: 10.18148/srm/2019.v1i1.7297. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/7297. Acesso em: 23 feb. 2024.