To cite movMF in publications use:

Hornik K, Grün B (2014). “movMF: An R Package for Fitting Mixtures of von Mises-Fisher Distributions.” Journal of Statistical Software, 58(10), 1–31. doi: 10.18637/jss.v058.i10.

Corresponding BibTeX entry:

  @Article{,
    title = {{movMF}: An {R} Package for Fitting Mixtures of von
      Mises-Fisher Distributions},
    author = {Kurt Hornik and Bettina Gr\"un},
    journal = {Journal of Statistical Software},
    year = {2014},
    volume = {58},
    number = {10},
    pages = {1--31},
    doi = {10.18637/jss.v058.i10},
  }