BIEBER, Ina Elisabeth; BYTZEK, Evelyn. Online-Surveys: An appropriate survey method for electoral research? A comparison of different survey modes in use at the 2009 German Federal Election. methods, data, analyses, [S. l.], v. 6, n. 2, p. 185–211, 2012. DOI: 10.12758/mda.2012.011. Disponível em: https://majournals.bib.uni-mannheim.de/mda/article/view/2012.011. Acesso em: 8 oct. 2025.