To cite package ‘mrlocus’ in publications use:

  Anqi Zhu*, Nana Matoba*, Emma P. Wilson, Amanda L. Tapia, Yun Li,
  Joseph G. Ibrahim, Jason L. Stein, Michael I. Love MRLocus:
  identifying causal genes mediating a trait through Bayesian
  estimation of allelic heterogeneity PLOS Genetics, 17(4): e1009455
  (2021)

A BibTeX entry for LaTeX users is

  @Article{,
    title = {MRLocus: identifying causal genes mediating a trait through Bayesian estimation of allelic heterogeneity},
    author = {Anqi Zhu and Nana Matoba and Emma P. Wilson and Amanda L. Tapia and Yun Li and Joseph G. Ibrahim and Jason L. Stein and Michael I. Love},
    year = {2021},
    journal = {PLOS Genetics},
    doi = {10.1371/journal.pgen.1009455},
  }