To cite package ‘RANN’ in publications use:

  Jefferis G, Kemp SE, Arya S, Mount D (2024). _RANN: Fast Nearest
  Neighbour Search (Wraps ANN Library) Using L2 Metric_. R package
  version 2.6.2, , <https://github.com/jefferislab/rann>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {RANN: Fast Nearest Neighbour Search (Wraps ANN Library) Using L2
Metric},
    author = {Gregory Jefferis and Samuel E. Kemp and Sunil Arya and David Mount},
    year = {2024},
    note = {R package version 2.6.2, 
},
    url = {https://github.com/jefferislab/rann},
  }