To cite package ‘hhh4contacts’ in publications use:

  Meyer S, Held L (2017). “Incorporating social contact data in
  spatio-temporal models for infectious disease spread.”
  _Biostatistics_, *18*(2), 338-351. doi:10.1093/biostatistics/kxw051
  <https://doi.org/10.1093/biostatistics/kxw051>.

A BibTeX entry for LaTeX users is

  @Article{,
    author = {Sebastian Meyer and Leonhard Held},
    title = {Incorporating social contact data in spatio-temporal models for infectious disease spread},
    journal = {Biostatistics},
    year = {2017},
    volume = {18},
    number = {2},
    pages = {338--351},
    doi = {10.1093/biostatistics/kxw051},
  }