@book { Allesfliet,
    title = "Alles fließt",
    author = "Elmar {Schenkel} and Alexandra {Lembert-Heidenreich}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1104708"
}