@book { RussischeSprachlehre,
    title = "Russische Sprachlehre",
    author = "Jacob {Rodde}",
    year = "1982",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b12961",
    url = "https://www.peterlang.com/document/1067305"
}