@book { HistoryofthePolishLithuanianCommonwealth,
    title = "History of the Polish-Lithuanian Commonwealth",
    author = "Urszula {Augustyniak}",
    year = "2015",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/978-3-653-05491-0",
    url = "https://www.peterlang.com/document/1067574"
}