To cite package 'proximetricsR' in publications use:

  Ramirez-Lopez, L., Orellano, C., Cudlenco, N., Said, M., and
  Abushosha, M. (2026). proximetricsR: Spectral Preprocessing and
  Calibration for NIR Sensors. R package version 0.6.4.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {proximetricsR: Spectral Preprocessing and Calibration for NIR Sensors},
    author = {Leonardo Ramirez-Lopez and Claudio Orellano and Nicolae Cudlenco and Mai Said and Mohamed Abushosha and Marcal Plans},
    year = {2026},
    note = {R package version 0.6.4},
    url = {https://github.com/l-ramirez-lopez/proximetricsr},
  }