To cite package ‘PopVar’ in publications use:

  Tiede T, Neyhart J (2024). _PopVar: Genomic Breeding Tools: Genetic
  Variance Prediction and Cross-Validation_. R package version 1.3.2,
  <https://CRAN.R-project.org/package=PopVar>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {PopVar: Genomic Breeding Tools: Genetic Variance Prediction and
Cross-Validation},
    author = {Tyler Tiede and Jeffrey Neyhart},
    year = {2024},
    note = {R package version 1.3.2},
    url = {https://CRAN.R-project.org/package=PopVar},
  }