To cite matrixpls in publications use:

Rönkkö, Mikko (2013). matrixpls: Matrix-based Partial Least Squares Estimation. R package version 0.2.0.

Corresponding BibTeX entry:

  @Manual{,
    title = {matrixpls: Matrix-based Partial Least Squares Estimation},
    author = {Mikko R\"onkk\"o},
    year = {2013},
    note = {R package version 0.2.0},
    url = {https://github.com/mronkko/matrixpls},
    year = {2013},
  }