To cite funGp in publications use:

Betancourt J, Bachoc F, Klein T, Idier D, Rohmer J, Deville Y (2024). “funGp: An R Package for Gaussian Process Regression with Scalar and Functional Inputs.” Journal of Statistical Software, 109(5), 1–51. doi:10.18637/jss.v109.i05.

Corresponding BibTeX entry:

  @Article{,
    title = {{funGp}: An {R} Package for {G}aussian Process Regression
      with Scalar and Functional Inputs},
    author = {Jos\'{e} Betancourt and Fran\c{c}ois Bachoc and Thierry
      Klein and D\'{e}borah Idier and J\'{e}r\'{e}my Rohmer and Yves
      Deville},
    journal = {Journal of Statistical Software},
    year = {2024},
    volume = {109},
    number = {5},
    pages = {1--51},
    doi = {10.18637/jss.v109.i05},
  }