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Blom, Annelies G.; Herzing, Jessica M. E.; Cornesse, Carina; Sakshaug, Joseph W.; Krieger, Ulrich; Bossert, Dayana (2017). Does the Recruitment of Offline Households Increase the Sample Representativeness of Probability-Based Online Panels? Evidence From the German Internet Panel. Social science computer review, 35(4), pp. 498-520. Sage 10.1177/0894439316651584
