To cite polyfreqs in publications use:

Blischak PD, Kubatko LS, Wolfe AD (2016). “Accounting for genotype uncertainty in the estimation of allele frequencies in autopolyploids.” Molecular Ecology Resources, 16, 742–754.

Corresponding BibTeX entry:

  @Article{,
    title = {Accounting for genotype uncertainty in the estimation of
      allele frequencies in autopolyploids},
    author = {Paul D. Blischak and Laura S. Kubatko and Andrea D.
      Wolfe},
    journal = {Molecular Ecology Resources},
    year = {2016},
    volume = {16},
    pages = {742--754},
  }