To cite BPEC in publications use:

Manolopoulou I, Hille A, Emerson B (2020). “BPEC: An R Package for Bayesian Phylogeographic and Ecological Clustering.” Journal of Statistical Software, 92(5), 1–32. doi: 10.18637/jss.v092.i05.

Corresponding BibTeX entry:

  @Article{,
    title = {{BPEC}: An {R} Package for Bayesian Phylogeographic and
      Ecological Clustering},
    author = {Ioanna Manolopoulou and Axel Hille and Brent Emerson},
    journal = {Journal of Statistical Software},
    year = {2020},
    volume = {92},
    number = {5},
    pages = {1--32},
    doi = {10.18637/jss.v092.i05},
  }