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Closed-Form Approximations to the REML Estimator of a Variance Ratio (or Heritability) in a Mixed Linear Model
Burch, Brent D., (2001)
Assessing the performance of normal-based and REML-based confidence intervals for the intraclass correlation coefficient
Burch, Brent D., (2011)
The estimated frequency of zero for a mixed Poisson distribution
Harris, Ian R., (1991)