To cite package ‘saeMSPE’ in publications use:

  Xiao P, Liu X, Liu Y, Liu S (2022). _saeMSPE: Compute MSPE Estimates
  for the Fay Herriot Model and Nested Error Regression Model_. R
  package version 1.2, <https://CRAN.R-project.org/package=saeMSPE>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {saeMSPE: Compute MSPE Estimates for the Fay Herriot Model and Nested
Error Regression Model},
    author = {Peiwen Xiao and Xiaohui Liu and Yuzi Liu and Shaochu Liu},
    year = {2022},
    note = {R package version 1.2},
    url = {https://CRAN.R-project.org/package=saeMSPE},
  }