To cite package ‘treestructure’ in publications use:

  Volz E (2026). _treestructure: Detect Population Structure Within
  Phylogenetic Trees_. R package version 0.7.0,
  <https://github.com/emvolz-phylodynamics/treestructure>.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {treestructure: Detect Population Structure Within Phylogenetic Trees},
    author = {Erik Volz},
    year = {2026},
    note = {R package version 0.7.0},
    url = {https://github.com/emvolz-phylodynamics/treestructure},
  }