@article{Leitner2009,
  author    = {Ulrike Leitner},
  title     = {Einleitung},
  journal   = {HIN : Alexander von Humboldt im Netz ; international review for Humboldtian studies},
  volume    = {VI},
  number    = {10},
  pages     = {5 -- 6},
  year      = {2009},
}