To cite FRK version 1 (with EM algorithm) in publications use:

Andrew Zammit-Mangion, Noel Cressie (2021). “FRK: an R package for spatial and spatio-temporal prediction with large datasets.” Journal of Statistical Software, 98(4), 1–48.

To cite FRK version 2 (non-Gaussian data) in publications use:

Matthew Sainsbury-Dale, Andrew Zammit-Mangion, Noel Cressie (2022). “Modelling big, heterogeneous, non-Gaussian spatial and spatio-temporal data using FRK.” arXiv:2110.02507.

Corresponding BibTeX entries:

  @Article{,
    title = {FRK: an R package for spatial and spatio-temporal
      prediction with large datasets},
    author = {{Andrew Zammit-Mangion} and {Noel Cressie}},
    journal = {Journal of Statistical Software},
    year = {2021},
    volume = {98},
    number = {4},
    pages = {1--48},
  }
  @Article{,
    title = {Modelling big, heterogeneous, non-Gaussian spatial and
      spatio-temporal data using FRK},
    author = {{Matthew Sainsbury-Dale} and {Andrew Zammit-Mangion} and
      {Noel Cressie}},
    journal = {arXiv:2110.02507},
    year = {2022},
  }