@book { DieMusikkritikimWandel,
    title = "Die Musikkritik im Wandel",
    author = "Susan {Holtfreter}",
    year = "2013",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-03131-7",
    url = "https://www.peterlang.com/document/1047663"
}