@book { GlebaeAdscripti,
    title = "«Glebae Adscripti»",
    author = "Krzysztof {Kowalczyk-Twarowski}",
    year = "2006",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    url = "https://www.peterlang.com/document/1101033"
}