@article{Jobst2006,
  author    = {Anne Jobst},
  title     = {Ein Brief von Alexander von Humboldt an Christian Gottfried Ehrenbergvor der Russischen Reise},
  url       = {http://edoc.bbaw.de/oa/articles/reUHWmk7q5drI/PDF/21EmD3TCmC1t2.pdf},
  year      = {2006},
}