@book { DiekleineVillamitHerz,
    title = "Die kleine Villa mit Herz",
    author = "Karin B. {Holmqvist} and Holger {Wolandt} and Lotta {Rüegger}",
    year = "2021",
    publisher = "dotbooks Verlag",
    address = "München, Deutschland",
    url = "https://m.dotbooks.de/document/452463"
}