To cite package ‘ReactomeContentService4R’ in publications use:

  Poon C, Cook J, Shorser S, Weiser J, Haw R, Stein L (2021). _R
  interface to the reactome graph database_, volume 10.
  doi:10.7490/f1000research.1118690.1
  <https://doi.org/10.7490/f1000research.1118690.1>.

A BibTeX entry for LaTeX users is

  @Manual{,
    author = {Chi-Lam Poon and Justin Cook and Solomon Shorser and Joel Weiser and Robin Haw and Lincoln Stein},
    title = {R interface to the reactome graph database},
    journal = {F1000Research},
    volume = {10},
    pages = {721 (poster)},
    year = {2021},
    doi = {10.7490/f1000research.1118690.1},
  }