@book { UrkundenderStadtBeeskowinRegesten12721649,
    title = "Urkunden der Stadt Beeskow in Regesten (1272-1649)",
    author = "",
    year = "2021",
    publisher = "Peter Lang Verlag",
    address = "Berlin, Germany",
    doi = "10.3726/b19387",
    url = "https://www.peterlang.com/document/1157004"
}