To cite idmodelr in publications use:

  Sam Abbott (2019). idmodelr, DOI: 10.5281/zenodo.2641048

A BibTeX entry for LaTeX users is

  @Article{,
    title = {idmodelr},
    author = {Sam Abbott},
    journal = {*},
    year = {2019},
    volume = {*},
    number = {*},
    pages = {*},
    doi = {10.5281/zenodo.2641048},
  }