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OPTIMAL UNBIASED LINEAR INTEGRATION OF ESTIMATORS
Ruiz Espejo, Mariano, (2001)
Optimal unbiased estimation of some population central moments
Espejo, Mariano Ruiz, (2013)
The Total Survey Error Approach: a Guide to the New Science of Survey Research by H. F. Weisberg
Espejo, Mariano Ruiz, (2006)