In Biemer, P. P., De Leeuw E. D., Eckman S., Edwards B., Kreuter F., Lyberg L. E., Tucker C., West B.T. (eds.): Total Survey Error in Practice: Improving Quality in the Era of Big Data. New York; Wiley
Data has been last edited on Aug 19 2016
Data has been last edited on Aug 19 2016