To cite the bigANNOY package in publications use:

  Frédéric Bertrand (2026). Approximate k-Nearest Neighbour Search for
  'bigmemory' Matrices with Annoy, R package version 0.3.0.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {Approximate k-Nearest Neighbour Search for 'bigmemory' Matrices
with Annoy},
    author = {Frederic Bertrand},
    year = {2026},
    note = {R package version 0.3.0},
    url = {https://CRAN.R-project.org/package=bigANNOY},
  }