@book { TextsandstudiesonRussianuniversalgrammar18061812,
    title = "Texts and studies on Russian universal grammar 1806 - 1812",
    author = "Johann {Biedermann} and Gerd {Freidhof}",
    year = "1984",
    publisher = "Biblion",
    address = ", Germany",
    doi = "10.3726/b13164",
    url = "https://www.peterlang.com/document/1073529"
}