@book { DerKampfumdenffentlichenRaum,
    title = "Der Kampf um den öffentlichen Raum",
    author = "Volker {Speth}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05629-7",
    url = "https://www.peterlang.com/document/1049355"
}