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Eurostat sampling reference guidelines - Introduction to sample design and estimation techniques
(2008)
Statistical theory of sampling inspection by attributes
Hald, Anders, (1981)
Sampling methods for the auditor : an advanced treatment
Arkin, Herbert, (1982)
A linear model approach to time and cost analysis
Williams, W. H., (1966)
On two methods of unbiased estimation with auxiliary variates
Williams, W. H., (1962)
The variance of an estimator with poststratified weighting