To cite the sigora package in publications use:

Foroushani AB, Brinkman FS, Lynn D (2013). “Pathway-GPS and SIGORA: identifying relevant pathways based on the over-representation of their gene-pair signatures.” PeerJ, 1.

Corresponding BibTeX entry:

  @Article{,
    title = {Pathway-GPS and SIGORA: identifying relevant pathways
      based on the over-representation of their gene-pair signatures},
    author = {A. B. Foroushani and F. S. Brinkman and D.J. Lynn},
    journal = {PeerJ},
    volume = {1},
    year = {2013},
    publisher = {PeerJ Inc},
  }