@book { MedienalsMittelurbanerKommunikation,
    title = "Medien als Mittel urbaner Kommunikation",
    author = "Ramona {Schröpf}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-02572-9",
    url = "https://www.peterlang.com/document/1047476"
}