To cite package ‘VarCon’ in publications use:

  Ptok J (2024). _VarCon: VarCon: an R package for retrieving
  neighboring nucleotides of an SNV_. R package version 1.13.0,
  <https://bioconductor.org/packages/VarCon>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {VarCon: VarCon: an R package for retrieving neighboring nucleotides of
an SNV},
    author = {Johannes Ptok},
    year = {2024},
    note = {R package version 1.13.0},
    url = {https://bioconductor.org/packages/VarCon},
  }