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In M. Callegaro, R. Baker, J. Bethlehem, A. S. Göritz, J. A. Krosnick and P. J. Lavrakas (eds.): Online Panel Research: A Data Quality Perspective. John Wiley & Sons, Ltd, Chichester, UK

Link: http://www.websm.org/db/12/17376/Web%20Survey%20Bibliography/Online_Panel_Research_A_Data_Quality_Perspective/

Data has been last edited on Jun 30 2014