@book { DaspoetischeSystemderDramenISTurgenevs,
    title = "Das poetische System der Dramen I. S. Turgenevs",
    author = "Walter {Koschmal}",
    year = "1983",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12496",
    url = "https://www.peterlang.com/document/1066965"
}