@book{
title = {Delfinabenteuer für Erstleser},
author = {Königsberg, Katja},
editor = {Gotzen-Beek, Bettina},
editor = {Luhn, Usch},
editor = {Völker, Kerstin},
editor = {Età: dai 5 ai 10 anni },
year = {2015},
address = {Ravensburg },
publisher = {Ravensburger Buchverlag},
}