To cite the PearsonICA package use:

Karvanen J, Koivunen V (2002). “Blind separation methods based on Pearson system and its extensions.” Signal Processing, 82(4), 663–673. http://dx.doi.org/10.1016/S0165-1684(01)00213-4.

Karvanen J (2008). PearsonICA: Independent component analysis using score functions from the Pearson system. R package version 1.2-3.

Corresponding BibTeX entries:

  @Article{,
    title = {Blind separation methods based on Pearson system and its
      extensions},
    author = {Juha Karvanen and Visa Koivunen},
    journal = {Signal Processing},
    volume = {82},
    number = {4},
    pages = {663--673},
    year = {2002},
    url = {http://dx.doi.org/10.1016/S0165-1684(01)00213-4},
  }

  @Manual{,
    title = {PearsonICA: Independent component analysis using score
      functions from the Pearson system},
    author = {Juha Karvanen},
    year = {2008},
    note = {R package version 1.2-3},
  }