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Sengupta, S.; Kundu, D. Admissible unbiased variance estimation in finite population sampling under randomized response. (English) Zbl 0738.62007 Metrika 38, No. 2, 71-82 (1991). MSC: 62D05 PDFBibTeX XMLCite \textit{S. Sengupta} and \textit{D. Kundu}, Metrika 38, No. 2, 71--82 (1991; Zbl 0738.62007) Full Text: DOI EuDML