To cite package ‘data.table’ in publications use:

Barrett T, Dowle M, Srinivasan A, Gorecki J, Chirico M, Hocking T, Schwendinger B, Krylov I (2026). data.table: Extension of 'data.frame'. R package version 1.18.99, https://github.com/rdatatable/data.table.

Corresponding BibTeX entry:

  @Manual{,
    title = {data.table: Extension of `data.frame`},
    author = {Tyson Barrett and Matt Dowle and Arun Srinivasan and Jan
      Gorecki and Michael Chirico and Toby Hocking and Benjamin
      Schwendinger and Ivan Krylov},
    year = {2026},
    note = {R package version 1.18.99},
    url = {https://github.com/rdatatable/data.table},
  }