To cite hsquared in publications, please use:

  Nakagawa S, Yang Y, Drobniak S (2026). hsquared: R Interface for
  Julia-Backed Quantitative-Genetic Models. R package; Julia twin
  HSquared.jl; twin DOI pending (D-23).
  https://github.com/itchyshin/hsquared

A BibTeX entry for LaTeX users is

  @Manual{hsquared,
    title = {{hsquared}: R Interface for Julia-Backed Quantitative-Genetic Models},
    author = {Shinichi Nakagawa and Yefeng Yang and Szymon Drobniak},
    year = {2026},
    note = {R package version 0.9.0 ; Julia twin HSquared.jl. A single twin DOI (D-23) will replace this note when both packages are tagged 0.9.0 and the Zenodo (or equivalent) deposit exists - no DOI is claimed here yet.},
    url = {https://github.com/itchyshin/hsquared},
  }