To cite geocmeans in publications use one of:

Gelb J, Apparicio P (2021). “Contribution of the spatial c-means fuzzy classification in geography: a socio-residential and environmental taxonomy in Lyon.” Cybergeo. doi: 10.4000/cybergeo.36414, https://journals.openedition.org/cybergeo/36414.

Gelb J (2021). Package geocmeans. LAEQ. https://github.com/JeremyGelb/geocmeans.

Corresponding BibTeX entries:

  @Article{,
    title = {Contribution of the spatial c-means fuzzy classification
      in geography: a socio-residential and environmental taxonomy in
      Lyon},
    author = {Jeremy Gelb and Phillipe Apparicio},
    journal = {Cybergeo},
    year = {2021},
    number = {972},
    doi = {10.4000/cybergeo.36414},
    url = {https://journals.openedition.org/cybergeo/36414},
  }
  @Manual{,
    title = {Package geocmeans},
    author = {Jeremy Gelb},
    year = {2021},
    organization = {LAEQ},
    url = {https://github.com/JeremyGelb/geocmeans},
  }