@article{Merker_2012,
  title={{On a variational principle in thermodynamics}},
  volume={25},
  ISSN={1432-0959},
  DOI={10.1007/s00161-012-0277-2},
  number={6},
  journal={Continuum Mechanics and Thermodynamics},
  publisher={Springer Science and Business Media LLC},
  author={Merker, Jochen and Krüger, Matthias},
  year={2012},
  pages={779--793}
}