@article{Zittel2003,
  author    = {Manfred Zittel},
  title     = {Lorenz Oken im Spiegel seiner Briefe an den Freund Matthias Keller},
  journal   = {Die Ortenau},
  volume    = {83},
  pages     = {267 -- 296},
  doi       = {10.57962/regionalia-18519},
  year      = {2003},
}