@book{vonHumboldt2011,
  author    = {Alexander von Humboldt},
  title     = {Zentralamerika},
  series    = {Centroam{\´e}rica},
  editor    = {Hector P{\´e}rez Brignoli},
  isbn      = {978-9968-46-276-1},
  year      = {2011},
}