To cite the 'ipADMIXTURE' package in publications use:

  Chainarong Amornbunchornvej, Pongsakorn Wangkumhang, and Sissades
  Tongsima (2020). ipADMIXTURE: R package for inferring sub-population
  clusters based on genetic admixture. bioRxiv 2020.03.21.001206.
  doi:https://doi.org/10.1101/2020.03.21.001206.

A BibTeX entry for LaTeX users is

  @Misc{,
    title = {ipADMIXTURE: R package for inferring sub-population clusters based on genetic admixture},
    author = {Chainarong Amornbunchornvej and Pongsakorn Wangkumhang and Sissades Tongsima},
    year = {2020},
    url = {https://doi.org/10.1101/2020.03.21.001206},
  }