@article{Holl2009,
  author    = {Holl, Frank},
  title     = {Vorwort},
  series = {Alexander von Humboldt im Netz ; international review for Humboldtian studies},
  volume    = {X},
  journal   = {Alexander von Humboldt im Netz ; international review for Humboldtian studies},
  number    = {19},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  issn      = {2568-3543},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-42800},
  pages     = {8 -- 17},
  year      = {2009},
  language  = {de}
}