To cite rSPDE in publications use:

Bolin D, Kirchner K (2020). “The rational SPDE approach for Gaussian random fields with general smoothness.” Journal of Computational and Graphical Statistics, 29(2), 274–285. doi: 10.1080/10618600.2019.1665537.

Corresponding BibTeX entry:

  @Article{,
    title = {The rational {SPDE} approach for {Gaussian} random fields
      with general smoothness},
    author = {David Bolin and Kristin Kirchner},
    journal = {Journal of Computational and Graphical Statistics},
    year = {2020},
    volume = {29},
    number = {2},
    pages = {274--285},
    doi = {10.1080/10618600.2019.1665537},
  }