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Marketing research with telephone surveys : is it time to change?
Vicente, Paula, (2010)
Data quality in telephone surveys via mobile and landline phone
Häder, Michael, (2012)
Coverage error in internet surveys : can fixed phones fix it?
Vicente, Paula, (2012)
The “frequency divide”: implications for internet-based surveys
Vicente, Paula, (2013)
Marketing Research With Telephone Surveys: Is It Time to Change?