@book { DiePronominalsystemederslavischenSprachen,
    title = "Die Pronominalsysteme der slavischen Sprachen",
    author = "Rudolf {Kattein}",
    year = "1984",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12518",
    url = "https://www.peterlang.com/document/1066984"
}