To cite package ‘Ipaper’ in publications use:

  Kong D (2026). _Ipaper: Collection of personal practical R
  functions_. R package version 0.1.11,
  <https://github.com/rpkgs/ipaper>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Ipaper: Collection of personal practical R functions},
    author = {Dongdong Kong},
    year = {2026},
    note = {R package version 0.1.11},
    url = {https://github.com/rpkgs/ipaper},
  }