@book { ErfolgreicheKinderbuchautorendesBiedermeier,
    title = "Erfolgreiche Kinderbuchautoren des Biedermeier",
    author = "Klaus {Füller}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1100077"
}