@book { DemTexteinFreund,
    title = "Dem Text ein Freund",
    author = "Roland {Altenburger} and Martin {Lehnert} and Andrea {Riemenschnitter}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Lausanne, Switzerland",
    url = "https://www.peterlang.com/document/1105892"
}