To cite 'medfate' package in publications use the citation corresponding to the model you used and mention the package version:

M DC, J M, L C, P L, P C, R P, JG P, L B (2015). Coupling a water balance model with forest inventory data to evaluate plant drought stress at the regional level, volume 213. doi:10.1016/j.agrformet.2015.06.012.

M DC, M M, N M, JM L, L C, R P, A C, V G, A F, F V, J M (2021). Unravelling the effect of species mixing on water use and drought stress in holm oak forests: a modelling approach, volume 296. doi:10.1016/j.agrformet.2020.108233.

Thank you for using 'medfate'

Corresponding BibTeX entries:

  @Manual{,
    title = {Coupling a water balance model with forest inventory data
      to evaluate plant drought stress at the regional level},
    author = {De Caceres M and Martinez-Vilalta J and Coll L and
      Llorens P and Casals P and Poyatos R and Pausas JG and Brotons
      L},
    journal = {Agricultural and Forest Meteorology},
    year = {2015},
    volume = {213},
    pages = {77-90},
    doi = {10.1016/j.agrformet.2015.06.012},
  }

  @Manual{,
    title = {Unravelling the effect of species mixing on water use and
      drought stress in holm oak forests: a modelling approach},
    author = {De Caceres M and Mencuccini M and Martin-StPaul N and
      Limousin JM and Coll L and Poyatos R and Cabon A and Granda V and
      Forner A and Valladares F and Martinez-Vilalta J},
    journal = {Agricultural and Forest Meteorology},
    year = {2021},
    volume = {296},
    doi = {10.1016/j.agrformet.2020.108233},
  }