To cite package ‘pgen2gds’ in publications use:

  Zheng X (2026). _pgen2gds: Format Conversion from PLINK2 PGEN to
  GDS_. R package version 0.99.2,
  <https://github.com/zhengxwen/pgen2gds>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pgen2gds: Format Conversion from PLINK2 PGEN to GDS},
    author = {Xiuwen Zheng},
    year = {2026},
    note = {R package version 0.99.2},
    url = {https://github.com/zhengxwen/pgen2gds},
  }