To cite package 'micEconCES' in publications use:

Henningsen, Arne, Géraldine Henningsen, and Gergő Literáti (2021): Econometric Estimation of the 'Constant Elasticity of Substitution' Function in R: the micEconCES Package. In Hashimzade, N. and M. Thornton (editors), Handbook of Research Methods and Applications in Empirical Microeconomics. Edward Elgar, p. 596–640. https://doi.org/10.4337/9781788976480.00030 (open access: https://bit.ly/3I5U310).

Corresponding BibTeX entry:

  @InCollection{,
    title = {Econometric Estimation of the 'Constant Elasticity of
      Substitution' Function in R: the micEconCES Package},
    author = {Arne Henningsen and G\'{e}raldine Henningsen and
      Gerg\H{o} Liter\'{a}ti},
    year = {2021},
    publisher = {Edward Elgar},
    editor = {Nigar Hashimzade and Michael A. Thornton},
    booktitle = {Handbook of Research Methods and Applications in
      Empirical Microeconomics},
    pages = {596–640},
    doi = {10.4337/9781788976480.00030},
  }