@book{Vogt2006,
  author    = {Carl Vogt},
  title     = {Ocean und Mittelmeer : Reisebriefe, Bd. 1-2},
  url       = {http://caliban.mpiz-koeln.mpg.de/~stueber/vogt/reisebriefe1/index.html},
  year      = {2006},
}