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Journal Article Some results on generalized difference estimation and generalized regression estimation for finite populations Get access CLAES M. CASSEL, CLAES M. CASSEL National Central Bureau of StatisticsStockholm Search for other works by this author on: Oxford Academic Google Scholar CARL E. SÄRNDAL, CARL E. SÄRNDAL Faculty of Commerce and Business Administration, University of British ColumbiaVancouver Search for other works by this author on: Oxford Academic Google Scholar JAN H. WRETMAN JAN H. WRETMAN National Central Bureau of StatisticsStockholm Search for other works by this author on: Oxford Academic Google Scholar Biometrika, Volume 63, Issue 3, December 1976, Pages 615–620, https://doi.org/10.1093/biomet/63.3.615 Published: 01 December 1976 Article history Received: 01 September 1975 Revision received: 01 May 1976 Published: 01 December 1976
Cassel et al. (Thu,) studied this question.