To cite package ‘glmmFEL’ in publications use:

  Karl A (2026). _glmmFEL: Generalized Linear Mixed Models via Fully
  Exponential Laplace in EM_. R package version 1.0.5.

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {glmmFEL: Generalized Linear Mixed Models via Fully Exponential Laplace in
EM},
    author = {Andrew T. Karl},
    year = {2026},
    note = {R package version 1.0.5},
  }

  Karl AT, Yang Y, Lohr SL (2014). “Computation of maximum likelihood
  estimates for multiresponse generalized linear mixed models with
  non-nested, correlated random effects.” _Computational Statistics &
  Data Analysis_, *73*, 146-162. doi:10.1016/j.csda.2013.11.019
  <https://doi.org/10.1016/j.csda.2013.11.019>.

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Computation of maximum likelihood estimates for multiresponse generalized linear mixed models with non-nested, correlated random effects},
    author = {Andrew T. Karl and Y Yang and Sharon L. Lohr},
    journal = {Computational Statistics & Data Analysis},
    year = {2014},
    volume = {73},
    pages = {146--162},
    doi = {10.1016/j.csda.2013.11.019},
  }