@book { StilleNachteisigeNacht,
    title = "Stille Nacht, eisige Nacht",
    subtitle = "Als Nis Puk das Weihnachtsfest rettete",
    author = "Kari {Köster-Lösche}",
    year = "2016",
    publisher = "jumpbooks",
    address = "München, Deutschland",
    url = "https://www.jumpbooks.de/document/318560"
}