Variance Estimation Using Auxiliary Information: An Almost Unbiased Multivariate Ratio Estimator. M. Rueda Garcia; A. Arcos Cebriân — 1997 Metrika
Repeated Substitution Method: The Ratio Estimator for the Population Variance. M. Rueda Garcia; A. Arcos Cebrian — 1996 Metrika
Quantile Interval Estimation in Finite Population Using a Multivariate Ratio Estimator. M. Rueda Garcia; A. Arcos Cebriân; E. Aries Rodriguez — 1998 Metrika