@book { DieGeschichtehinterdemRegenbogen,
    title = "Die Geschichte hinter dem Regenbogen",
    author = "Lila {Rosenroth}",
    year = "2018",
    publisher = "Omnino Verlag",
    address = "Berlin, Deutschland",
    url = "https://shop.omnino-verlag.de/document/444553"
}