To cite elrm in publications use:

  Zamar D, McNeney B and Graham J. elrm: Software Implementing
  Exact-like Inference for Logistic Regression Models. Journal of
  Statistical Software 2007, 21(3).

A BibTeX entry for LaTeX users is

  @Article{,
    title = {elrm: Software Implementing Exact-like Inference for Logistic Regression Models},
    author = {David Zamar and Brad McNeney and Jinko Graham},
    journal = {Journal of Statistical Software},
    volume = {21},
    number = {3},
    year = {2007},
    url = {https://www.jstatsoft.org/},
  }

We have invested a lot of time and effort in creating the elrm package,
please cite it when using it for data analysis.