@book { InternatSternenfelsBand1WildeHummeln,
    title = "Internat Sternenfels - Band 1: Wilde Hummeln",
    author = "Sissi {Flegel}",
    year = "2016",
    publisher = "jumpbooks",
    address = "München, Deutschland",
    url = "https://m.jumpbooks.de/document/318549"
}