To cite package 'pcaL1' in publications use:

  Sapan Jot, J. Paul Brooks, Andrea Visentin, Young Woong Park (2023).
  pcaL1: L1-Norm PCA Methods. R package version 1.5.7.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {pcaL1: L1-Norm PCA Methods},
    author = {Sapan Jot and J. Paul Brooks and Andrea Visentin and Young Woong Park},
    year = {2023},
    note = {R package version 1.5.7},
  }