To cite 'igoR' in publications use:

Hernangómez D (2026). igoR: Access the Intergovernmental Organizations (IGO) Database. doi:10.32614/CRAN.package.igoR. https://dieghernan.github.io/igoR/.

Please also cite:

Pevehouse J, Nordstrom T, McManus R, Jamison A (2020). “Tracking organizations in the world: The Correlates of War IGO Version 3.0 datasets.” Journal of Peace Research, 57(3), 492-503. doi:10.1177/0022343319881175.

Corresponding BibTeX entries:

  @Manual{R-igoR,
    title = {{igoR}: Access the Intergovernmental Organizations ({IGO})
      Database},
    doi = {10.32614/CRAN.package.igoR},
    author = {Diego Hernangómez},
    year = {2026},
    version = {1.0.3},
    url = {https://dieghernan.github.io/igoR/},
    abstract = {Provides tools for searching, extracting and recoding
      the Intergovernmental Organizations (IGO) Database (version 3),
      distributed by the Correlates of War Project
      <https://correlatesofwar.org/>. Includes IGO-year and
      country-year membership data, state system data and functions for
      deriving dyad-year joint membership results. For a description of
      the data, see Pevehouse, J. C. et al. (2020)
      <doi:10.1177/0022343319881175>.},
  }

  @Article{,
    author = {Jon CW Pevehouse and Timothy Nordstrom and Roseanne W
      McManus and Anne Spencer Jamison},
    title = {Tracking organizations in the world: The Correlates of War
      {IGO} Version 3.0 datasets},
    journal = {Journal of Peace Research},
    volume = {57},
    number = {3},
    pages = {492-503},
    year = {2020},
    doi = {10.1177/0022343319881175},
  }