@Manual{goxygen,
    title = {goxygen: Documentation package for modular GAMS code},
    author = {Jan Philipp Dietrich and Kristine Karstens},
    year = {2020},
    note = {R package version 0.29.0},
    doi = {10.5281/zenodo.1411404},
    url = {https://github.com/pik-piam/goxygen},
  }

@Manual{gms,
    title = {gms: GAMS modularization support package},
    author = {Jan Philipp Dietrich and David Klein and Anastasis Giannousakis and Felicitas Beier and Johannes Koch and Lavinia Baumstark},
    year = {2020},
    note = {R package version 0.2.1},
  }

