To cite spTDyn in publications use:

  Bakar, K.S., Kokic, P. and Jin, H. (2015). A spatio-dynamic model for
  assessing frost risk in south-eastern Australia, Journal of the Royal
  Statistical Society, Series C, 64(5), 755-778,
  https://doi.org/10.1111/rssc.12103

A BibTeX entry for LaTeX users is

  @Article{,
    author = {K. Shuvo Bakar and Philip Kokic and Huidong Jin},
    title = {{A spatio-dynamic model for assessing frost risk in south-eastern Australia}},
    year = {2015},
    journal = {{Journal of the Royal Statistical Society, Series C}},
    doi = {10.1111/rssc.12103},
    url = {https://doi.org/10.1111/rssc.12103},
    pages = {755--778},
    volume = {64},
    number = {5},
  }

  Bakar, K. S., Kokic, P., & Jin, H. (2015). Hierarchical spatially
  varying coefficient and temporal dynamic process models using spTDyn.
  Journal of Statistical Computation and Simulation, 86(4), 820-840,
  https://doi.org/10.1080/00949655.2015.1038267

A BibTeX entry for LaTeX users is

  @Article{,
    author = {K. Shuvo Bakar and Philip Kokic and Huidong Jin},
    title = {{Hierarchical spatially varying coefficient and temporal dynamic process models using {spTDyn}}},
    year = {2015},
    journal = {{Journal of Statistical Computation and Simulation}},
    doi = {10.1080/00949655.2015.1038267},
    url = {https://doi.org/10.1080/00949655.2015.1038267},
    pages = {820--840},
    volume = {86},
    number = {4},
  }