@book { damitdasKindnichtindenBrunnenfllt,
    title = "... damit das Kind nicht in den Brunnen fällt!",
    author = "Heinz Jörgen {Franz} and Rudolf {Lumpp}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1089869"
}