OLSON, Kristen; WAGNER, James. A feasibility test of using smartphones to collect GPS information in face-to-face surveys. Survey Research Methods, [S. l.], v. 9, n. 1, p. 1–13, 2015. DOI: 10.18148/srm/2015.v9i1.6036. Disponível em: https://ojs.ub.uni-konstanz.de/srm/article/view/6036. Acesso em: 25 jul. 2024.