@article{Rubner2009,
  author    = {Max Rubner},
  title     = {Die Quelle der thierischen W{\"a}rme},
  journal   = {Zeitschrift f{\"u}r Biologie},
  volume    = {30, N.F. 12},
  pages     = {73 -- 142},
  year      = {2009},
}