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Kleffe, J. On variance components estimation in heteroscedastic models. (English) Zbl 0614.62084 Comput. Stat. Q. 1, 179-204 (1984). MSC: 62J10 PDFBibTeX XMLCite \textit{J. Kleffe}, Comput. Stat. Q. 1, 179--204 (1984; Zbl 0614.62084)