To cite package ‘S7’ in publications use:

Vaughan D, Hester J, Kalinowski T, Landau W, Lawrence M, Maechler M, Tierney L, Wickham H (2026). S7: An Object Oriented System Meant to Become a Successor to S3 and S4. R package version 0.2.2, https://github.com/rconsortium/s7.

Corresponding BibTeX entry:

  @Manual{,
    title = {S7: An Object Oriented System Meant to Become a Successor
      to S3 and S4},
    author = {Davis Vaughan and Jim Hester and Tomasz Kalinowski and
      Will Landau and Michael Lawrence and Martin Maechler and Luke
      Tierney and Hadley Wickham},
    year = {2026},
    note = {R package version 0.2.2},
    url = {https://github.com/rconsortium/s7},
  }