Rao, T. J. On certain problems of sampling design and estimation for multiple characteristics. (English) Zbl 0825.62350 Sankhyā, Ser. B 55, No. 3, 372-384 (1993). Cited in 2 Documents MSC: 62D05 Sampling theory, sample surveys PDF BibTeX XML Cite \textit{T. J. Rao}, Sankhyā, Ser. B 55, No. 3, 372--384 (1993; Zbl 0825.62350)