Key points are not available for this paper at this time.
Estimated standard deviations which are obtained in Rietveld refinements are known to decrease towards zero with the recording step, but serial correlations appear at the same time. A simple calculation which takes into account local correlations has been developed to furnish a reliable estimate of the values they would have if these correlations vanish.
Bérar et al. (Fri,) studied this question.