To cite envi in publications, please cite the following: (1)

  Ian D. Buller, Gregory M. Hacker, Mark G. Novak, James R. Tucker, A.
  Townsend Peterson, Lance A. Waller (2024). Multiple "spaces": using
  wildlife surveillance, climatic variables, and spatial statistics to
  identify and map a climatic niche for endemic plague in California,
  U.S.A. Spatial and Spatio-temporal Epidemiology, 51, 100696.
  DOI:10.1016/j.sste.2024.100696

A BibTeX entry for LaTeX users is

  @Article{,
    title = {Multiple "spaces": using wildlife surveillance, climatic variables, and spatial statistics to identify and map a climatic niche for endemic plague in California, U.S.A.},
    author = {Ian D. Buller and Gregory M. Hacker and Mark G. Novak and James R. Tucker and A. Townsend Peterson and Lance A. Waller},
    journal = {Spatial and Spatio-temporal Epidemiology},
    year = {2024},
    volume = {51},
    pages = {100696},
    doi = {10.1016/j.sste.2024.100696},
  }

and (2)

  Ian D. Buller (2024). envi: Environmental Interpolation using Spatial
  Kernel Density Estimation. The Comprehensive R Archive Network.
  v1.0.0. DOI:10.32614/CRAN.package.envi Accessed by:
  https://cran.r-project.org/package=envi

A BibTeX entry for LaTeX users is

  @Manual{,
    title = {envi: Environmental Interpolation using Spatial Kernel Density Estimation},
    author = {Ian D. Buller},
    publisher = {The Comprehensive R Archive Network},
    year = {2024},
    number = {1.0.0},
    doi = {10.32614/CRAN.package.envi},
    url = {https://cran.r-project.org/package=envi},
  }