To cite package ‘spls’ in publications use:

Chung D, Chun H, Keles S (2025). spls: Sparse Partial Least Squares (SPLS) Regression and Classification. R package version 2.3-3, https://github.com/valentint/spls.

Corresponding BibTeX entry:

  @Manual{,
    title = {spls: Sparse Partial Least Squares (SPLS) Regression and
      Classification},
    author = {Dongjun Chung and Hyonho Chun and Sunduz Keles},
    year = {2025},
    note = {R package version 2.3-3},
    url = {https://github.com/valentint/spls},
  }