To cite statGraph in publications use:

Santos, SS. & Fujita, A. (2017). statGraph: Statistical Methods for Graphs (Version 0.1.0). Available from https://www.ime.usp.br/~fujita/software.html

Corresponding BibTeX entry:

  @Manual{,
    title = {statGraph: Statistical Methods for Graphs},
    author = {Suzana S. Santos and Andre Fujita},
    year = {2017},
    note = {(Version 0.1.0)},
    url = {https://www.ime.usp.br/~fujita/software.html},
  }