@book { DerRaumOstfalen,
    title = "Der Raum Ostfalen",
    author = "Ursula {Föllner} and Saskia {Luther} and Dieter {Stellmacher}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-04109-5",
    url = "https://www.peterlang.com/document/1048352"
}