@book { TheKolbergsofEasternEurope,
    title = "The Kolbergs of Eastern Europe",
    author = "Bożena {Muszkalska}",
    year = "2018",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b11375",
    url = "https://www.peterlang.com/document/1055182"
}