@book { LiteraturoperamEndedes20Jahrhunderts,
    title = "Literaturoper am Ende des 20. Jahrhunderts",
    author = "Swantje {Gostomzyk}",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1106553"
}