Betancourt, J., F. Bachoc, T. Klein, D. Idier, J. Rohmer, and Y. Deville. “FunGp: An R Package for Gaussian Process Regression With Scalar and Functional Inputs”. Journal of Statistical Software, vol. 109, no. 5, May 2024, pp. 1-51, doi:10.18637/jss.v109.i05.